what is the mean absolute deviation of 38,38,38,39, and 42?

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What is the mean absolute deviation of 38,38,38,39,and 42?

Anonymous

Guest May 15, 2015

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Best Answer

First find the mean: (38 + 38 + 38 + 39 + 42)/5 = 39

Now add up the absolute values of the deviations from the mean and divide by 5:

MAD = (|38-39| + |38-39| + |38-39| + |39-39| + |42-39|)/5 = (1 + 1 + 1 + 0 + 3)/5 = 6/5 = 1.2

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Alan May 15, 2015

Alan · Answer 1 · 2015-05-15T02:25:32

First find the mean: (38 + 38 + 38 + 39 + 42)/5 = 39

Now add up the absolute values of the deviations from the mean and divide by 5:

MAD = (|38-39| + |38-39| + |38-39| + |39-39| + |42-39|)/5 = (1 + 1 + 1 + 0 + 3)/5 = 6/5 = 1.2

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