Question

mean = 8. weekly hours spent doing homework are 3,3,4,5,7,8,8,9,9,9,10,10,11,12 and 12. what is the mena absolute deviation?

Answer 1

Subtract each number from the mean (exp: 8-12=-4) and add all the absolute values (the numbers regardless of positive or negative (4 is the absolute value of -4)) together, then divide by the number of numbers (15) that gives you 2.4 :)