math mrs. sue HELP!!!
posted by rian on .
how do u find the mean absolute deviation and what are the steps too!!

Say you have a data set {4,6,8,9,10}
1. Find the mean = (4+6+8+9+10)/5=7.4
2. Sum the deviations from the mean (absolute values, no negatives)
(47.4)+(67.4)+(87.4)+(97.4)+(107.4) = 9.6
3. Divide the sum by the number of data (n=5) to get 9.6/5=1.92
4. 1.92 is the mean absolute deviation required.