to find it
find the mean
then find how much each deviates from the mean then average
7+22+23.5+24+11+22=109.5
6 numbers
109.5/6=18.25
find teh distance of all of them
7 to 18.25 is 11.25
22 to 18.25 is 3.75
23.5 to 18.75 is 4.75
24 to 18.75 is 5.25
11 to 18.75 is 7.75
22 to 18.75 is 3.25
take the mean of those
(11.75+3.25+4.75+5.25+7.75+3.25)/6=36/6=6
mean average deviation is 6
