Question

A town measured the length of four city parks. The mean absolute deviation of these lengths was 5 yd. Which could be the lengths of the city’s parks?

Answer 1

A) 60 yd, 70 yd, 80 yd, 90 yd
B) 61 yd, 63 yd, 71 yd, 73 yd
C) 62 yd, 63 yd, 73 yd, 73 yd
D) 63 yd, 66 yd, 72 yd, 75 yd

Answer 2

The equation needed is as below:\[\sum_{i=1}^{n}\left| x _{i}-xbar \right|/n\]
You need to try each series of values to find the correct choice.