Question

finding the mean absolute deviation
robins scores 99 108 102 107 119
distance from the mean 8 1 5 0 12
what is the mean absolute deviation of robins scores?
mad = \frac{8 + 1 + 5 + 0 + 12}{5}

Explanation:

Step1: Calculate the sum in the numerator

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

Step2: Divide by the number of data - points

$\frac{26}{5}=5.2$

Answer:

$5.2$