9-3 Sample Spaces
Warm UpWarm Up
Lesson PresentationLesson Presentation
Problem of the DayProblem of the Day
Lesson QuizzesLesson Quizzes
9-3 Sample Spaces
Warm Up
1. A dog catches 8 out of 14 flying disks thrown. What is the experimental probability that it will catch the next one?
2. If Ted popped 8 balloons out of 12 tries, what is the experimental probability that he will pop the next balloon?
47
23
9-3 Sample Spaces
Problem of the Day
How many different types of meat pizzas can be made if the choices of meat topping are pepperoni, sausage, ham, and meatball? (Hint: There can be 1, 2, 3, or 4 toppings on the pizza.)
15 (4 one-topping, 6 two-topping, 4 three-topping, and 1 four-topping)
9-3 Sample Spaces
MA.7.P.7.1 Determine the outcome of an experiment…
Sunshine State Standards
9-3 Sample Spaces
Vocabulary
sample spaceFundamental Counting Principle
9-3 Sample Spaces
3
2
6
3
2
6
Because you can roll the numbers 1, 2, 3, 4, 5, and 6 on a number cube, there are 6 possible outcomes. Together, all the possible outcomes of an experiment make up the sample space.
You can make an organized list to show all possible outcomes of an experiment.
9-3 Sample Spaces
One bag has a red tile, a blue tile, and a green tile. A second bag has a red tile and a blue tile. Vincent draws one tile from each bag. What are all the possible outcomes? How many outcomes are in the sample space?
Additional Example 1: Problem Solving Application
9-3 Sample Spaces
11 Understand the Problem
Rewrite the question as a statement.
• Find all the possible outcomes of drawing one tile from each bag, and determine the size of the sample space.
List the important information:
• There are two bags.
• One bag has a red tile, a blue tile, and a green tile.
Additional Example 1 Continued
• The other bag has a red tile and a blue tile.
9-3 Sample Spaces
22 Make a Plan
You can make an organized list to show allpossible outcomes.
Additional Example 1 Continued
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Solve33
Let R = red tile, B = blue tile, and G = green tile.
Record each possible outcome.
The possible outcomes are RR, RB, BR, BB, GR, and GB. There are six possible outcomes in the sample space.
Additional Example 1 Continued
BG
RG
BB
RB
BR
RR
Bag 2Bag 1
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Look Back44
Each possible outcome that is recorded in the list is different.
Additional Example 1 Continued
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Check It Out: Example 1
Darren has two bags of marbles. One has a green marble and a red marble. The second bag has a blue and a red marble. Darren drawsone marble from each bag. What are all the possible outcomes? How many outcomes are in the sample space?
The four possible outcomes are GB, GR, RB, and RR. There are four possible outcomes in the sample space.
9-3 Sample Spaces
There are 4 cards and 2 tiles in a board game. The cards are labeled N, S, E, and W. The tiles are numbered 1 and 2. A player randomly selects one card and one tile. What are all the possible outcomes? How many outcomes are in the sample space?
Additional Example 2: Using a Tree Diagram to Find a Sample Space
Make a tree diagram to show the sample space.
9-3 Sample Spaces
Check It Out: Example 2
Shauna spins the spinner at left and flips a coin. Complete the tree diagram. What are all the possible outcomes? How many outcomes are in the sample space?
9-3 Sample Spaces
Check It Out: Example 2 Continued
1
H T
2
H T
3
H T
4
H T
The possible outcomes are 1H, 1T, 2H, 2T, 3H, 3T, 4H, and 4T. There are eight possible outcomes.
9-3 Sample Spaces
In Additional Example 1, there are three outcomes for the first bag and two outcomes for the second bag.
In Additional Example 2, there are four outcomes for the cards and two outcomes for the tiles. Cards Tiles
First bag Second bag
9-3 Sample Spaces
The Fundamental Counting Principle states that you can find the total number of outcomes for two or more experiments by multiplying the number of outcomes for each separate experiment.
9-3 Sample Spaces
Carrie rolls two 1–6 number cubes. How many outcomes are possible?
Additional Example 3: Application
The first number cube has 6 outcomes.
The second number cube has 6 outcomes
List the number of outcomes for each separate experiment.
6 · 6 = 36
There are 36 possible outcomes when Carrie rollstwo 1–6 number cubes.
Use the Fundamental Counting Principle.
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Check It Out: Example 3A
Juan tosses a coin and rolls a number cube. How many outcomes are possible?
There are two possible outcomes for the coin. There are six possible outcomes for the number cube.
2 × 6 = 12
There are twelve possible outcomes.
9-3 Sample Spaces
Check It Out: Example 3B
Juan rolls a number cube and spins the spinner shown in Check It Out question 2. How many outcomes are possible?
There are six possible outcomes for the number cube. There are four possible outcomes for the spinner.
6 × 4 = 24
There are 24 possible outcomes.
9-3 Sample Spaces
Standard Lesson Quiz
Lesson Quizzes
Lesson Quiz for Student Response Systems
9-3 Sample Spaces
Lesson Quiz
What are all the possible outcomes? How many outcomes are in the sample space?
1. a three question true-false test
2. tossing four coins
3. choosing a pair of cocaptains from the following athletes: Anna, Ben, Carol, Dan, Ed, Fran
8 possible outcomes: TTT, TTF, TFT, TFF, FTT, FTF, FFT, FFF
16 possible outcomes: HHHH, HHHT, HHTH, HTHH, THHH, HHTT, HTHT, HTTH, THHT,THTH, TTHH, HTTT, THTT, TTHT, TTTH, TTTT
15 possible outcomes: AB, AC, AD, AE, AF, BC, BD, BE, BF, CD, CE, CF, DE, DF, EF
9-3 Sample Spaces
1. Three fair coins are tossed. What are all the possible outcomes? How many outcomes are in the sample space?
A. 2 possible outcomes: H, T
B. 4 possible outcomes: HH, HT, TH, TT
C. 6 possible outcomes: HHH, HHT, HTT, THH, TTH, TTT
D. 8 possible outcomes: HHH, HHT, HTT, HTH, THH, THT, TTH, TTT
Lesson Quiz for Student Response Systems
9-3 Sample Spaces
2. Sam tosses a coin and rolls a number cube. What are all the possible outcomes? How many outcomes are in the sample space? A. 8 possible outcomes: H, T, 1, 2, 3, 4, 5, 6
B. 12 possible outcomes: H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6
C. 12 possible outcomes: HH, HT, TH,TT, 12, 23, 34, 45, 56, 61, 11, 66
D. 24 possible outcomes: H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6, 1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T
Lesson Quiz for Student Response Systems
9-3 Sample Spaces
3. Bag A contains a red, a blue, and a yellow ball. Bag B contains a white, an orange, and a green ball. Frederica draws one ball from each bag. What are all the possible outcomes? How many outcomes are in the sample space?
A. 9 possible outcomes: RW, RO, RG, BW, BO, BG, YW, YO, YG
B. 9 possible outcomes: RR, BB, YY, WW, OO, GG, RW, BO, YG
C. 6 possible outcomes: RR, RO, RY, WW, WO, WG
Lesson Quiz for Student Response Systems
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