Mean, median, mode, range review

Find the mean of the data set:

14, 19, 13, 22, 7

• 15

• 13

• There is none because no numbers repeat.

• 15

Answer explanation

(14+19+13+22+7)/5 = 15

Find the median of the data set:

17, 35, 20, 18, 29, 26

• 23

• 24.17

• There is none because no numbers repeat.

• 18

Find the mode of the data set:

10, 18, 13, 22, 10, 13, 10, 19

• 14.375

• 13

• 10

• 12

Find the range of the data set:

37, 40, 33, 45, 32, 34

• 36.83

• 35.5

• There is none because no numbers repeat.

• 13

What is the outlier in the following data set?

29, 2, 28, 30, 26, 31

• 2

• 29

• 31

• 23.3

Pam is 17 years old and her sister is 9. Her two brothers are 11 and 7 years old. What is the mean of their ages?

• 11

• 10

• 13

• 9

Sam had four tests last month. His scores were 81, 94, 83 and 91. What is the median of his scores?

• 87

• 87.25

• 83

• 91

When Sally went bowling, her scores were 108, 72 and 95. If she bowls a 4th game, what will her score need to be to give her an average of 91?

• 89

• 77

• 91

The mean of the data set is 15. What number is missing?

18, 16, _, 9, 12, 23

• 12

• 14

• 15

The range of a data set is 18. If the smallest number of the set is 9, what is the largest number.

• 27

• 18

• 13.5