A straight fence is to be constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. If a certain fence begins and ends with a post. If there are 7 posts, what is the total length of the fence?

Mean absolute deviation is the average distance of the data from the mean.

Mean = [5+24+38+52+66+85]/6 = 270/6 = 45

Distances of each data from the mean

|5-45| = 40
|24-45| = 21
|38-45|= 7
|52-45|=7
|66-45| = 21
|85-45| = 40

Average of the distances = [40+21+7+7+21+40]/6 = 136/6 = 22.7

22.7