Question

finding the mean absolute deviation
what is the mean absolute deviation of evelyns scores?
evelyns scores 125 137 138 145 145
distance from the mean 13 1 0 7 7
5.1 5.6
7 5.8

Explanation:

Step1: Sum of absolute deviations

Sum the values in the "Distance from the Mean" row: \(13 + 1+0 + 7+7\).

$$13+1 + 0+7+7=28$$

Step2: Calculate the mean absolute deviation

Divide the sum by the number of data points (\(n = 5\)).
\(\frac{28}{5}=5.6\)

Answer:

\(5.6\)