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Measures of Variability

Last updated about 6 years ago

4 questions

1

1

1

1

Question 1

1.

What is the range? 7, 10, 13, 12, 21, 10, 3, 4

4.5

7

8

18

Question 2

2.

What is the mean absolute deviation (MAD)? 7, 10, 13, 12, 21, 10, 3, 4

4

7

8

10

Question 3

3.

What is the Interquartile (IQR) range? 7, 10, 13, 12, 21, 10, 3, 4

7

8

10

21

Question 4

4.

If median is the best measure of center, which is the best measure of variability?

MAD

IQR

range