Question

finding the mean absolute deviation
what is the mean absolute deviation of robins scores?
mad = (8 + 1+ 5 + 0 + 12)/5
robins scores distance from the mean
99 8
108 1
102 5
107 0
119 12

Explanation:

Step1: Calculate the sum of distances

$8 + 1+5 + 0+12=26$

Step2: Divide by the number of data - points

There are 5 data - points. So, $\text{MAD}=\frac{26}{5}=5.2$

Answer:

$5.2$