Find the M. A.D.

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The MAD is .8.

Step-by-step explanation:

MAD stands for Mean Absolute Deviation, which is the avg distance between each data value and the mean. Let's start by calculating the mean.

Mean = sum of values (ratings) / total number of values (frequency)

          = 1 + 3 + 3 + 4 + 4 / 1 + 2 +2

          = 3

Next let's calculate each of the distances (absolute value) from the mean, then take the average!

1 - 3 = 2 (absolute value)

3 - 3 = 0

3 - 3 = 0

4 - 3 = 1

4 - 3 = 1

Let's now take the average of the distances.

Mean = sum of distances / total number of values (frequency)

          = 2 + 0 + 0 + 1 + 1 / 1 + 2 + 2

          = .8

The MAD is .8.