200
Joanie runs a book store. She kept track of the number of books her first 5 customers bought. Here is the data:
3, 4, 2, 5, 1
She wants to find the Mean Absolute Deviation
What is 1.2
the sum of the numbers is 15 ÷ 5 = 3
l3-3l+l4-3l+l2-3l+l5-3l+l1-3l
0 + 1 + 1 + 2 + 2 = 6 ÷ 5 = 1.2