Test Review Unit 7

1.) How many more people like yellow than orange?

Red Orange Yellow Purple0

2

4

6

8

10

12

14

Favorite Color in class

2.) How many people vote for their favorite color?

Red Orange Yellow Purple0

2

4

6

8

10

12

14

Favorite Color in class

3.) What is the interquartile range?

0.5 1 1.5 2 2.5 3 3.5 4 4.50.5

1.5

2.5

3.5

4.5

Number of Followers

4.) How many people had less than 4 followers?

0.5 1 1.5 2 2.5 3 3.5 4 4.50.5

1.5

2.5

3.5

4.5

Number of Followers

5.) How many more zebras do their need to be to have twice as many zebras as monkeys?

6. What is the mode of the line plot below?

7.) 40 people were surveyed. If there are 200 people in the school, how many would you expect to choose a zebra?

Animal Mascot Number of votes

Zebra 14

Giraffe 6

Lion 10

Chimpanzee 10

8.) 40 people were surveyed, if there are 200 people in the school, how many would you expect to choose a giraffe?

Animal Mascot Number of votes

Zebra 14

Giraffe 6

Lion 10

Chimpanzee 10

9.) What is the mean of the data?

5 7 3

9 4 1

5 10 1

10.) If the surveyor surveyed 50 people, how many chose gryphon as their mode of transportation?

gryphon20%

unicorn60%

emu15%

motorcycle5%

Transportation between Class

11.) If the surveyor surveyed 50 people, how many chose unicorn as their mode of transportation?

gryphon20%

unicorn60%

emu15%

motorcycle5%

Transportation between Class

12.) What is 5% of 20?

13.) What is the percent of change if 12 is increased to 18.

14.) What is the range for Year 10?

15.) Which Year had a higher median, and by how much?

16.) Which Class had a greater interquartile range, and by how much?

17.) True/False – Half the students in class A read between 82 and 73?

18.) True/False: In both classes, everyone got less than a 90.

19.) Divide and simplify:

20.) True/False: IQR = Q3 - Q1