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Worksheets

Statistical Measures

Total questions: 13

Worksheet time: 3hrs 15mins

Name
Class
Date
1.

Find the third and first quartiles of this data: 5, 7, 7, 6, 4, 8, 17, 5, 7, 5, 6, and 5.

a)

7, 5

b)

6.5, 6

c)

17, 4

d)

8, 6

2.

Find the interquartile range of this data: 5, 7, 7, 6, 4, 8, 17, 5, 7, 5, 6, and 5.

a)

2

b)

5

c)

12

d)

17

3.

What is the median price for the sneakers?

a)

$25

b)

$29

c)

$38

d)

$43

4.

What is the mean absolute deviation of this data: 10, 20, 15, 17, and 13?

a)

15

b)

10

c)

3

d)

2.8

5.

What is the mean of the data in the dot plot? Round to the nearest tenth.

a)

13

b)

7.5

c)

5.8

d)

2.9

6.

What is the mode of the data in the dot plot?

a)

10

b)

6

c)

5

d)

2

7.

What is the median of the data in the dot plot?

a)

4

b)

6

c)

5

d)

7

8.

Which measure of center best represents the data set: 8, 6, 9, 3, 12, 4, 2, 10, 7, and 8?

a)

mean

b)

median

c)

mode

d)

range

9.

Which measure of center best represents the data set: 6, 12 15, 12, 12, 20, 12, and 13?

a)

mean

b)

median

c)

mode

d)

range

10.

Which measure of center best represents the data set: 3, 3, 5, 4, 3, 8, 3, 4, 3, 6, and 2?

a)

mean

b)

median

c)

mode

d)

range

11.

Find the mean absolute deviation of the data set 8, 10, 15, 8, 12, 13, 12, and 14 given that the mean of this data set is 11.5. Round to the nearest hundredth if necessary.

a)

1.7

b)

2.05

c)

2.13

d)

4.25

12.

What is the third quartile of the data?

a)

67

b)

83

c)

84

d)

85

13.

Laura mowed 8 lawns. She earned $12, $10, $15, $15, $15, $10, and $9 for seven lawns. How much did she earn on the eighth time if the mean of the data is $12.

a)

$9

b)

$10

c)

$12

d)

$15