Renewable and Alternative Energy Leon County Schools 8 th Grade Comprehensive Science.
8 TH GRADE COMPREHENSIVE REVIEW
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Transcript of 8 TH GRADE COMPREHENSIVE REVIEW
8TH GRADE COMPREHENSIVE REVIEW
MATHEMATICS
• Purpose: PSSA Review for 8th Grade Mathematics(Can be used as enrichment or remediation for middle school levels)
• Contents: Concept vocabulary & practice exercises/ solutions.
Fill-in-the-blank, Multiple Choice, Short & Extended Response
• Sources: PA Assessment Anchors & Eligible Content for 8th Grade Mathematics
PA Assessment Anchor Glossary for 7th & 8th Grade Mathematics PDE Standard Aligned Systems Online Resources
McGraw Hill Pre-Algebra & Algebra I 2012 SeriesHolt McDougal 8th Grade Mathematics 2012 Series
• Reinforcement: www.studyisland.com http://www.ixl.com/math/grades www.mathmaster.org PSSA Coach, Assessment Anchors Measuring Up to the Pennsylvania Academic
Standards
MATHEMATICS
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INSTRUCTIONS There are five categories tested; Numbers & Operations,
Measurement, Geometry, Algebraic Concepts, Data Analysis & Probability.
Each category has a two page vocabulary (fill-in-the-blank) review, followed by multiple choice, short response, and extended response exercises that are aligned with each of the Assessment Anchor subcategories.
Navigate through the review as you would a regular PowerPoint slide show.
Fill-in-the-blank answers will appear, in order, at the click of a mouse. Exercise answers will also appear at the click of a mouse. Use the reference symbol to access the 8th Grade Formula Sheet if
needed. Use the symbol found on the Formula Sheet to return to your
previous slide.
PLEASE BEGIN!!
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Numbers & OperationsVocabulary Review
1. The product of a number and its __________ is 1.
2. Any number that can be written as a fraction is called a _________.
3. ________________ is a short-hand way of writing extremely large or extremely small numbers.
4. The set of ____________ is the set of all rational and irrational numbers.
5. The product of an integer multiplied by itself is called a _____________.
Word Bank:Rational numberScientific notationOrder of OperationsProportion
ReciprocalUnit pricePerfect squareReal numbersSquare root
Expanded form
Reciprocal
Rational number
Scientific notation
Real numbers
Perfect square
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Numbers & OperationsVocabulary Review
6. A number written as the sum of values of its digits is called _________.
7. A number that is multiplied by itself to form a product is called a ___________ of that product.
8. A(n) __________ is used to compare price per item.
9. Rules describing what sequence to use in evaluating expressions is known as __________________.
10.A ___________ is an equation showing that two ratios are equal.
Word Bank:Rational numberScientific notationOrder of OperationsProportion
ReciprocalUnit pricePerfect squareReal numbersSquare root
Expanded form
Expanded form
Square root
Unit price
Order of Operations
Proportion
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Practice…Representing Numbers in equivalent forms.
Scientific Notation
The Earth is approximately 93,000,000 miles from the sun. What is the distance written in scientific notation?
A. 9.3 x 106
B. 93 x 106
C. 93 x 107
D. 9.3 x 107
Exponential Form
Which number represents 4.5 x 104 written in standard notation?
A. 0.00045B. 0.000045C. 45,000D. 450,000
Numbers & Operations
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Practice…Representing Numbers in equivalent forms.
Expanded Notation
Which expression is equivalent to the number 8,006,425?
A. (8x107)+(6x106)+(4x103)+(2x102)+(5x101)B. (8x10)+(6x10)+(4x10)+(2x10)+(5x10)C. (8x106)+(6x105)+(4x104)+(2x103)+(5x102)D. (8x106)+(6x103)+(4x102)+(2x101)+(5x100)
Numbers & Operations
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Practice…Representing Numbers in equivalent forms.
Square Root
LeAnn got an answer of about 3.87 when she entered 15 on her calculator and pressed the (√) key. Which of the following statements is the most likely explanation for her to believe that her calculator’s answer is or not reasonable?
A. It is not reasonable, because the answer should be a whole number.
B. It is reasonable because 3 squared is 9 while 4 squared is 16.C. It is not reasonable, because the answer should be only slightly
more than 3.D. It is reasonable, because 15 is and odd number.
Numbers & Operations
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3³ + 4(8-5) ÷ 6 =
A. 6.5B. 11C. 29D. 27.5
Practice…Completing calculations by applying the order of operations.
Order of Operations
Evaluate7 + 5[(3 + 2)² - (2³ + 1)]
A. 97B. 87C. 36D. 22
Numbers & Operations
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Karen is solving this problem.(3² + 4²)² = ?
Which step is correct in the process of solving this problem?
A. (3² + 4⁴)B. (9² + 16²)C. (7²)²D. (9 + 16)²
Practice…Completing calculations by applying the order of operations.
Order of Operations Which statement is
correct?
A. (2 x 3) + 5 ÷ 8 = 2B. (2 x 3 + 5) ÷ 8 = 2C. 2 x (3 + 5) ÷ 8 = 2D. (2 x 3) + 5 ÷ 8 = 2
Numbers & Operations
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Practice… Represent or solve problems using rates, ratios, proportions and/or percents.
Rates
A secretary can type 56 words per minute. How much time will she need to type a 4200-word report?
A. 7 hours 30 minutesB. 1 hour 4 minutesC. 1 hour 28 minutesD. 1 hour 15 minutes
Ratios
In 1991, and American, Ann Trason, set a world record by running 100km in
Which is the best estimate of her average speed?
A. 12 km per hrB. 14 km per hrC. 16 km per hrD. 18 km per hr
Hours Minutes Seconds7 50 09
Numbers & Operations
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Practice… Represent or solve problems using rates, ratios, proportions and/or percents.
Julio’s wages vary directly as the number of hours that he works. If his wages for 5 hours are $29.75, how much will he earn for 30 hours?
Proportions(Short Response)
Scoring Rubric:**[2 points] $178.50, and appropriate work is shown, such as solving a
proportion, using a table, or trial and error with at least three trials and appropriate checks.
*[1 point] An incorrect proportion is set up, but no solution or an incorrect solution is found.
*[1 point] $178.50, but no work is shown or fewer than three trials with appropriate checks are shown.
[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is a correct response that was obtained by an obviously incorrect procedure.
Numbers & Operations
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Practice… Represent or solve problems using rates, ratios, proportions and/or percents.
Bob and Rebecca both drove to a baseball game at a college stadium. Bob lives 70 miles from the stadium and Rebecca lives 60 miles from it, as shown in the accompanying diagram. Bob drove at a rate of 50 miles per hour, and Rebecca drove at a rate of 40 miles per hour. If they both left home at the same time, who got to the stadium first?
Distance & Rates(Short Response)
Scoring Rubric:
**[2 points] Bob, and appropriate work is shown, such as using the distance formula to calculate the two travel times or setting up a proportion.
*[1 point] Appropriate work is shown, but one computational or conceptual error is made but an appropriate answer is found.
*[1 point] Appropriate work is shown, but no answer or an incorrect answer is found.
[0 points] Bob, but no work or inappropriate work is shown.
[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is a correct response that was obtained by an obviously incorrect procedure.
70 miles
60 miles
Bob’s House
Rebecca’s House
Numbers & Operations
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Practice… Using estimation strategies in problem-solving situations.
Ken bought a used car for $5,375. He had to pay an additional 15 percent of the purchase price to cover both sales tax and extra fees. Of the following, which is the closest to the total amount Ken paid?
A. $806B. $5,510C. $5,760D. $6,180
Estimation
The state law requires that students attend school 180 days out of the 365 days in a year. Approximately what percent of a year must students attend school?
A. 2%B. 50%C. 75%D. 200%
Numbers & Operations
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Fractions A grocery store sells brown sugar by the pound. The table below
shows how many cups of sugar a customer will get for the number of pounds purchased.
The pattern continues. What is the total number of cups of brown sugar in a 7-pound package?
A. 15 2/3
B. 16 1/3
C. 16 2/3
D. 17 1/3
Practice… Computing and/ or explaining operations with integers, fractions and/ or decimals.
Number of Pounds Number of Cups3 7
4 9 1/3
5 11 2/3
6 14
Numbers & Operations
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Fractions
Subtract (-) 14 5/8
- 6 3/8
A. 8 3/8
B. 7 2/8
C. 8 1/4
D. 9
Decimals
Divide (÷) 30.24
A. 0.08B. 8.0C. 0.72D. 12.5
Practice… Computing and/ or explaining operations with integers, fractions and/ or decimals.
Numbers & Operations
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Subtracting Negatives
Solve:27 – (-9)
A. -3B. -18C. 18D. 36
Adding Negatives
Solve:-4 + 23
A. -19B. 19C. 20D. -27
Practice… Computing and/ or explaining operations with integers, fractions and/ or decimals.
Numbers & Operations
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Practice… Calculating mean.
TOP Electronics is a small business with five employees. The mean (average) weekly salary for the five employees is $360. If the weekly salaries of four of the employees are $340, $340, $345, and $425, what is the salary of the fifth employee?
Average(Short Response)
Scoring Rubric:**[2 points] $350, and appropriate work is shown, such as (1450 +x) ÷ 5 = 360,
or trial and error with at least trials and appropriate checks.*[1 point] Appropriate work is shown, but one computational error is made*[1 point] The total of the five salaries is shown to be 5 · 360 = 1800, but no
further correct work is shown.*[1 point] $350, but no work is shown or fewer than three trials with appropriate
checks are shown.[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is
a correct response that was obtained by an obviously incorrect procedure.
Numbers & Operations
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1. ____________ is the sum of the areas of all the faces of a 3-D figure.
2. The sum of ___________________ is equal to 180°.
3. A _______ is a 2-D shape that can be folded to create a 3-D figure.
4. A 3-D solid that has two congruent and parallel faces is known as a _______.
5. The sum of ____________________ is equal to 90°.
Word Bank:NetCircumferencePrismSupplementary angles
Complementary anglesFormulaInterior angle Polygon Surface area
Volume
Measurement Vocabulary ReviewSurface area
Supplementary angles
Complementary angles
Net
Prism
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6. A(n) _____________ is an angle inside of a shape.
7. A (n) _________ is a closed plane figure formed by three or more line segments that intersect only at their endpoints (vertices).
8. The number of cubic units needed to fill a given space is known as ________.
9. ______________ is the measured distance around a circle.
10.A ________ is a rule showing relationships among quantities.
Word Bank:NetCircumferencePrismSupplementary angles
Complementary anglesFormulaInterior angle Polygon Surface area
Volume
Measurement Vocabulary Review
Interior angle
Polygon
Volume
Circumference
Formula
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Customary measurements
How many feet are in 15 miles?
A. 352B. 35,200C. 79,200D. 89,760
Metric measurements
Greg is 150 centimeters tall. How many meters is that?
A. 0.500B. 1.5C. 15D. 15,000
Practice… Converting measurements.
Measurement
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In a quadrilateral, each of two angles has a measure of 115°. If the measure of a third angle is 70°, what is the measure of the remaining angle?
A. 60°B. 70°C. 130°D. 140°
Find the measure in degrees, of the smallest angle in this triangle:
A. 20B. 40C. 60D. 80
Practice… Determining the measurement of a missing side(s) or angle(s) in a polygon.
Missing Angles
3x
2x 4x
Measurement
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Practice… Determining the measurement of a missing side(s) or angle(s) in a polygon.
In the accompanying diagram of ∆BCD, m<C=70, m<CDE=130, and side BD is extended to A and to E. Find m<CBA.
Missing Angles(Short Response)
Scoring Rubric:**[2 points] 120, and appropriate work is shown, such as m<CDB= 180 – 130 = 50
and m<CBA = 70 + 50 = 120 or correctly labeled angles in a diagram.*[1 point] Appropriate work is show, but one computational error is made.*[1 point] Appropriate work is show, but one conceptual error is made.*[1 point] m<CBD = 60 is found, but no further correct work is shown.*[1 point] 120, but no work is shown[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is a
correct response that was obtained by an obviously incorrect procedure.
A B
C
D E
70°
130°
Measurement
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The length of each side of a figure below is 4 inches (in.).
What is the perimeter of the figure?
A. 12 in.B. 16 in.C. 20 in.D. 24 in.
The interior angles of a sign total 1080°. What type of polygon is the sign?
A. HexagonB. PentagonC. HeptagonD. Octagon
Practice… Determining the measurement of a missing side(s) or angle(s) in a polygon.
Missing Sides
4 in.
Measurement
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A farmer has a rectangular field that measures 100 feet by 150 feet. He plans to increase the area of the field by 20%. He will do this by increasing the length and width by the same amount, x. Which equation represents the area of the new field?
A. (100 + 2x)(150 + x) = 18,000
B. 2(100 + x) + 2(150 + x) = 15,000
C. (100 + x)(150 + x) = 18,000
D. (100 + x)(150 + x) = 15,000
Scaling Area
Measurement
Practice… Determining measures of perimeter, circumference, area, surface area and/ or volume.
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Surface Area The box pictured below is open
at the top. Find its outside surface area.
A. 45 cm²B. 1150 cm²C. 1300 cm²D. 3750 cm²
Volume The volume of the rectangular
solid below is 1,440 cubic inches.
What could be the length and width of this rectangular solid?
A. 4 inches by 10 inchesB. 8 inches by 20 inchesC. 10 inches by 48 inchesD. 30 inches by 40 inches
Practice… Determining measures of perimeter, circumference, area, surface area and/ or volume.
10 cm15 cm
20 cm 3 in
Measurement
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Perimeter Delroy’s sailboat has two sails
that are similar triangles. The larger sail has sides of 10 feet, 24 feet, and 26 feet. If the shortest side of the smaller sail measures 6 feet, what is the perimeter of the smaller sail?
A. 15 ftB. 36 ftC. 60 ftD. 100 ft
Circumference The circumference of a circle
is 16∏. What is the radius of the circle?
A. 4B. 8C. 16D. 32
Practice… Determining measures of perimeter, circumference, area, surface area and/ or volume.
Measurement
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Perimeter How does the perimeter of a
rectangle change when each side is increased by 2 units
A. The perimeter doublesB. The perimeter quadruplesC. The perimeter increases by 4
unitsD. The perimeter increases by 8
units
Area If the diameter of a car tire is
30 cm, what is the area of that circle? Round your answer.
A. 30.14 cm²B. 314 cm²C. 7,070 cm²D. 707 cm²
Practice… Determining measures of perimeter, circumference, area, surface area and/ or volume.
Measurement
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1. When a transversal intersects two lines, ___________________ are on the same side of the transversal and on the same side of the given lines. (Also, similar or congruent figures.)
2. A(n) _________________ has exactly two congruent sides.
3. The ____________________ is a formula for finding the length of a side of a right triangle when the lengths of two sides are given.
4. A pair of ________________ angles are located outside a set of parallel lines and on opposite sides of the transversal.
5. A pair of opposite congruent angles formed when two lines intersect are called _____________.
Word Bank:Isosceles triangleAdjacent anglesCoordinate plane
Acute triangle
Corresponding anglesPythagorean TheoremScalene triangle
Vertical anglesAlternate exterior
Alternate interior
Geometry Vocabulary Review
Corresponding angles
Isosceles triangle
Pythagorean Theorem
Alternate exterior
Vertical angles
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6. A(n) _______________ has no congruent sides.
7. A (n) ____________ has each angle measuring less than 90°.
8. A pair of _______________ angles are located between a set of parallel lines and on opposite sides of the transversal.
9. A ________________ is a 2-D system which contains both horizontal and vertical axes.
10._______________ share a common side and common vertex and do not overlap.
Word Bank:Isosceles triangleAdjacent anglesCoordinate plane
Acute triangle
Corresponding anglesPythagorean TheoremScalene triangle
Vertical anglesAlternate exterior
Alternate interior
Geometry Vocabulary Review
Scalene triangle
Acute triangle
Alternate interior
Coordinate plane
Adjacent angles
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Circular Geometry A duck swims from the edge of a circular pond to a fountain in
the center of the pond. Its path is represented by the dotted line in the diagram below.
What term describes the duck’s path?
A. ChordB. RadiusC. DiameterD. Central angle
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders..
Duck’s Path
Geometry
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Parallelograms
The height of a parallelogram is 13.5 feet. The base is four times the height. What is the area of the parallelogram?
A. 45.5625 ft²B. 54 ft²C. 182.25 ft²D. 729 ft²
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders..
Prisms
What is the volume of a rectangular prism with a length of 16 inches, a height or 4 inches, and a width of 12 inches?
A. 48 in.³B. 768 in.³C. 1810 in.³D. 2413 in.³
Geometry
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Parallelograms(Short Response)
Is it possible for two parallelograms to have the same area but not be congruent? Explain why or why not.
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders..
Geometry
Scoring Rubric:
**[2 points] Yes, two parallelograms can have the same area but not be congruent. Let one parallelogram have a base of 6 units and a height of 4 units. Its area is 24 square units. Let another parallelogram have a base of 8 units and a height of 3 units. Its area is also 24 units, but the two parallelograms are not congruent.
*[1 point] Yes, two parallelograms can have the same area but not be congruent. No explanation or example is given.
*[1 point] Yes, two parallelograms can have the same area but not be congruent. A poor or incorrect explanation is given.
[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is a correct response that was obtained by an obviously incorrect procedure.
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Which angles are complementary?
A. <2 and <3B. <3 and <4C. <4 and <5D. <1 and <2
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders..
1 2 345
The ratio of two supplementary angles is 2:7. What is the measure of the smaller angle?
A. 10°B. 14°C. 20°D. 40°
Angles
Geometry
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Net Which of the following figures is the net of a square based pyramid?
A. 1 C. 3
B. 2 D. 4
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders..
Geometry
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Regular Polygons(Extended Response)
The top of the picnic table shown has the shape of a regular polygon.
a. Sketch and classify the polygon. Is it convex or concave?
b. Draw a single segment that divides the polygon in your sketch into two trapezoids.
c. Find the sum of the measures of the angles of the polygon.
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders..
Geometry
Solution:a–b. The polygon is a regular hexagon. It is convex.
c. 360 + 360 = 720The sum of the measures of the angles of the polygon is 720°.
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Line p is parallel to line k in the figure shown below
Which statement about the lines in the figure is true?
A. Line k is parallel to line m.B. Line m is parallel to line j.C. Line p is perpendicular to line k.D. Line j is perpendicular to line p.
In the diagram below, line l is parallel to line m and line p is parallel to line q?
Which angle has the same measure as <1?
A. <2B. <3C. <4D. <5
Practice…Identifying, using, and/or describing properties of angles, triangles, quadrilaterals, circles, pyramids, cubes, prisms, spheres, cones and/or cylinders.
Angles & Lines
2 13
4 5
l m
q
p
j
m
kp
Geometry
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Mr. Kyle drives eight miles south and then six miles east. What was the diagonal distance from his starting point?
A. 2 milesB. 10 milesC. 14 milesD. 48 miles
What is the length of the missing side in this triangle?
A. 14B. 15C. 16D. 18
Practice…Computing measures of sides of right triangles using the Pythagorean Theorem.
Pythagorean Theorem
12
x
20
Geometry
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Which building is located at (-2, 3)?
A. SchoolB. LibraryC. MarketD. Bank
At what point does the line intersect the y-axis?
A. (5, 0)B. (0, 5)C. (0,-3)D. (-3, 0)
Practice…Plot and/or identify ordered pairs on a coordinate plane.
Coordinate System
Library
School
Bank
Market
Geometry
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1. A ______________ is an equation whose graph in a coordinate plane is a straight line.
2. _____________ is the distance of a number from zero on a number line; shown by | |.
3. A(n) __________________ is a group of two or more equations that contain two or more variables.
4. A phrase that contains operations, numbers, and/or variables is a(n) ____________.
5. A relationship that has exactly one output for each input is called a ________.
Word Bank:FunctionFunction tableSystem of equationsAbsolute value
ExpressionInverse operationsTermsEquationInequality
Linear function
Algebraic Concepts Vocabulary Review
Linear equation
Absolute value
System of equations
Expression
Function
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6. An _________ shows the relationship between quantities that are not equal.
7. A sentence that shows that two expressions are equivalent is a(n) ________.
8. ______ in an expression are set apart by plus or minus signs.
9. A table of ordered pairs that represent solutions of a function is called a _____________.
10._________________ undo each other; addition and subtraction, multiplication and division.
Word Bank:FunctionFunction tableSystem of equationsAbsolute value
ExpressionInverse operationsTermsEquationInequality
Linear function
Algebraic Concepts Vocabulary Review
Inequality
Equation
Terms
Function table
Inverse operations
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Fiona created a pattern using numbers as shown below.
0, 2, 6, 12The pattern continues. What is
the next number in the pattern?
A. 14B. 18C. 20D. 24
Practice…Analyzing, extending or developing descriptions of patterns or functions.
Patterns
List the next two values in this sequence:
4, 10, 22, __, __
A. 34, 46B. 34, 48C. 40, 62D. 46, 94
Algebraic Concepts
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What is the solution of x > -3?.3
A. x < -1B. x > -1C. x < -9D. x > -9
Practice…Analyzing, extending or developing descriptions of patterns or functions.
Functions The table below shows a
relationship between the values of x and y.
Which equation describes the relationship?
A. y = x – 3B. y = x +3C. y = -x -3D. y = -x +3
x y-7 -10
-2 -5
3 0
8 5
Algebraic Concepts
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Dora owns a card store. After a full week, she made $250.00 by selling cards (c). Using the equation 1.25c = 250, how many cards did Dora sell that week?
A. 125B. 200C. 251D. 312
In which equation is m = 28 the solution?
A. m – 3 = 5 5B. m – 3 = 5
5C. m – 3 = 5
5D. (m – 3)5 = 5
Practice…Select and/ or use a strategy to simplify an expression, solve an equation or inequality and/ or check the solution for accuracy.
Solving Equations
Algebraic Concepts
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Expressions
If k can be replaced by any number, how many different values can the expression k + 6 have?
A. OneB. SixC. SevenD. Infinitely many
Inequalities
There is $150 in Dave’s bank account. He deposits $200 into the account each month. Dave needs at least $700 to buy a used car. The inequality below can be solved for x to find the number of deposits Dave must make to reach his goal.
200x + 150 ≥ 700How many deposits must Dave make?
A. x ≥ 2.75B. x ≤ 2.75C. x ≥ 4.25D. x ≤ 4.25
Practice…Selecting and/ or using a strategy to simplify an expression, solve an equation or inequality and/ or check the solution for accuracy.
Algebraic Concepts
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Practice… Selecting and/ or using a strategy to simplify an expression, solve an equation or inequality and/ or check the solution for accuracy.
Brett was given the problem: “Evaluate 2x² + 5 when x = 3.” Brett wrote that the answer was 41. Was Brett correct? Explain your answer.
Checking for Accuracy(Short Response)
Scoring Rubric:
**[2 points] No, and an appropriate explanation is given or the expression is evaluated correctly.
*[1 point] No, and the correct order of operations is used to evaluate 2(3)² + 5, but one computational error is made.
*[1 point] One conceptual error is made in evaluating the expression, but the question is answered appropriately.
*[1 point] Appropriate work is shown, but the question is not answered.
[0 points] No, but no explanation or an inappropriate explanation is given.
[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is a correct response that was obtained by an obviously incorrect procedure.
Algebraic Concepts
57
Inequalities
When Bernie earns 5 times more than the amount (a) of money he has plus another $1,000, he will have at least $16,000 to start a small business. Which statement represents this situation?
A. 5a + 1,000 ≥ 16,000B. 5 + 1,000a ≤ 16,000C. 5a +1,000 ≤ 16,000D. 5 + 1,000a ≥ 16,000
Expressions
Which expression represents 4 times the sum of x squared and 6?
A. 4x² + 6B. 4(x² + 6)C. 4(x + 6)²D. (4x + 6)²
Practice…Creating and/ or interpreting expressions, equations or inequalities that model problem situations.
Algebraic Concepts
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A wooden box with 8 DVDs inside weighs 4.2 kilograms. The box weighs 0.6 kg when empty. Using w to represent the weight of one DVD, which of the following describes this situation?
A. 8w = 4.2B. 8w + 0.6 = 4.2C. 8w – 0.6 = 4.2D. 8(w + 0.6) = 4.2
Which equation shows that the sum of x and 2 is twice as much as 6?
A. x = 2 · 2 · 6B. x + 2 · 2 =6C. 2(x +2) = 6D. x + 2 = 2 · 6
Practice…Creating and/ or interpreting expressions, equations or inequalities that model problem situations.
Creating Equations
Algebraic Concepts
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Tables Which linear function is
graphed below?
A. y = x + 3B. y² = 3xC. y = 3D. x = 3
Functions Given the function y = ½x -2,
which set of numbers completes the table?
A. {4, 3, 2}B. {-4, -3, -2}C. {-4, 3, 2}D. {4, -3, -2}
Practice…Represent relationships with tables or graphs on the coordinate plane.
x y-4
-2
0
Algebraic Concepts
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1. ___________ describes the relationship between two sets of data.
2. A graphic method for showing a summary using median, quartiles and extremes of data is known as a(n) ____________________.
3. A(n) ___________ is a possible order or arrangement of a set of items.
4. A statement of _____________________ is based on the results of a series of trials.
5. Two events that cannot occur at the same time are known as _______________________.
Word Bank:Compound eventStem-and-leaf plotTheoretical probability
Box-and-whisker plot
Experimental probabilityIndependent eventsPermutation
Mutually exclusive events
Scatter plotCorrelation
Data Analysis & ProbabilityVocabulary ReviewCorrelation
Box-and-whisker plot
Permutation
Experimental probability
Mutually exclusive events
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6. ___________________ is a statement of the probability of an event without doing an experiment or analyzing.
7. A _______________ is made up of two or more simple events.
8. Two events in which the outcome of one event does not affect the outcome of the other event are known as _________________.
9. A graph with points plotted to show a relationship between two variables is called a ___________.
10.A(n) ________________ displays groups of data arranged by place value.
Data Analysis & ProbabilityVocabulary Review
Word Bank:Compound eventStem-and-leaf plotTheoretical probability
Box-and-whisker plot
Experimental probabilityIndependent eventsPermutation
Mutually exclusive events
Scatter plotCorrelation
Theoretical probability
Compound event
Independent events
Scatter plot
Stem-and-leaf plot
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Charts According to the graph, what
percent of the students chose generic brands?
A. 15%B. 14%C. 17%D. 16%
Brand A; 8%Brand B;
5%Brand C;
15%
Brand D; 30%
Brand E; 27%
Generic brands
Favorite Sneakers at Sherman High School
Stem-and-Leaf Plots The table below shows test
scores for a class. How many students scored in the 80’s?
A. 2 studentsB. 6 studentsC. 7 studentsD. 9 students
Practice…Choosing, displaying or interpreting data.
Stem Leaf9 0 1 1 5 7
8 0 0 2 4 6 7 9
7 7 7 8 9
6 9
5 2 3
4 4
Data Analysis & Probability
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Interpreting Data The test scores for 10 students in Ms. Sampson’s homeroom were
61, 81, 83, 87, 88, 89, 90, 98, and 100. Which frequency table is accurate for this set of data?
A. 1) C. 3)
B. 2) D. 4)
Practice…Choosing, displaying or interpreting data.
Interval Frequency61-70 2
71-80 2
81-90 7
91-100 10
Data Analysis & Probability
Interval Frequency61-70 2
71-80 0
81-90 8
91-100 10
Interval Frequency61-70 2
71-80 2
81-90 8
91-100 10
Interval Frequency61-70 2
71-80 0
81-90 6
91-100 2
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There are 15 girls and 11 boys in a mathematics class. If a student is selected at random to run an errand, what is the probability that a boy will be selected?
A. 4/26B. 11/26C. 15/26D. 11/15
There are 9 packages, 5 red and 4 green. There are calculators inside 4 of the red packages and inside 2 of the green packages. What is the probability of choosing a package containing a calculator from the entire group of packages?
A. 4/5B. 2/3C. 1/2D. 4/9
Practice…Calculating the probability of an event.
Probability
Data Analysis & Probability
65
While watching a game at a carnival where participants guess which of three cups is covering a ball, Jeremy tallies that following results.
Find the experimental probability of the following as a fraction in its simplest form AND an approximate percentage.
a. Find the experimental probability of the ball being under the right cup.
b. Find the experimental probability of the ball not being under the middle cup.
Practice…Calculating the probability of an event.
Probability
Data Analysis & Probability
33 or about 50%67
49 or about 73%67
Ball Location left middle
right
Frequency 16 18 33
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Combination
Sarah and Tom belong to a soccer league that has 8 teams. Each team will play all of the other teams twice. How many games will be played in all?
A. 16B. 28C. 56D. 64
Permutation
Edward conducts a simulation using a coin, a number cube, and a spinner as shown below.
What is the number of outcomes for this simulation?
A. 3B. 8C. 12D. 48
Practice…Determining the number of combinations and/ or permutations for an event.
Data Analysis & Probability
67
Practice…Determining the number of combinations and/ or permutations for an event.
In Jackson County, Wyoming, license plates are made with two letters (A through Z) followed by three digits (0 through 9). The plates are made according to the following restrictions:
• the first letter must be J or W, and the second letter can be any of the 26 letters of the alphabet
• no digit can be repeated How many different license plates can be made with these restrictions?
Combinations(Short Response)
Scoring Rubric:**[2 points] 37,440 and appropriate work is shown, such as 2 x 26 x 10 x 9 x 8 or
2P1 x 26P1 x 10P3.*[1 point] Appropriate work is show, but one computational error is made.*[1 point] Appropriate work is shown for at least one restriction, such as 2x26 or
10 x 9 x 8.*[1 point] 37,440 but no work is shown.[0 points] A zero response is completely incorrect, irrelevant, or incoherent or is
a correct response that was obtained by an obviously incorrect procedure.
Data Analysis & Probability
68
Drawing Conclusions
From a batch of 3000 light bulbs, 100 were selected at random and tested. If 5 of the light bulbs in the sample were found to be defective, about how many defective light bulbs would be expected in the entire bunch?
A. 15B. 60C. 150D. 300
Correlation
The data represented in the scatter plot below can be described as having…
A. Positive correlationB. Negative correlationC. No correlationD. Both positive and negative
correlation
Practice…Drawing conclusions, making inferences and/ or evaluate hypotheses based on statistical and data displays.
Data Analysis & Probability
69
Drawing Conclusions
An animal shelter needs to find homes for 40 dogs and 60 cats. If 15% of the dogs are female and 25% of the cats are female, what percent of the animals are female?
A. 21%B. 22%C. 40%D. 42%
Correlation
Which data sets have a negative correlation?
A. A person’s eye color and height
B. A person’s height and weightC. The distance traveled and
the time it takes to travelD. The outdoor temperature and
the number of hours a heater is used
Practice…Drawing conclusions, making inferences and/ or evaluate hypotheses based on statistical and data displays.
Data Analysis & Probability
70
Drawing Conclusions John left his home and walked 3 blocks to his school, as shown in
the accompanying graph.
What is one possible interpretation of the section of the graph from point B to point C?
A. John reached the top of a hill and began walking on level ground.B. John waited before crossing a busy street.C. John arrived at school and stayed throughout the day.D. John returned home to get his mathematics homework.
Practice…Drawing conclusions, making inferences and/ or evaluate hypotheses based on statistical and data displays.
A
B C
D
1
3
2
Time
Data Analysis & Probability
71
Good luck to all!!!
Feel free to repeat the review as many times as you like or continue studying
your own additional resources!