Mean Absolute Deviation

What is the mean absolute deviation of the following values?

13, 14, 17, 28, 28

(Do not round the final answer).

What is the mean absolute deviation of the following list of values?

12, 1, 0, 3, 4

(Do not round your final answer).

What is the MAD of the following list of values?

4, 32, 33, 45, 67, 5

(Round your final answer to the nearest TENTH!)

Data Set A has a mean absolute deviation of 1.3.

Data Set B has a mean absolute deviation of 19.8.

What characteristics apply to Data Set A?

• predictable, consistent, reliable

• unpredictable, inconsistent, unreliable

Data Set A has a mean absolute deviation of 1.3.

Data Set B has a mean absolute deviation of 19.8.

What characteristic applies to Data Set B?

• less variability (closer together)

• more variability (spread out)