What does the average spread mean in math terms?

Answer 1

Line all the numbers in order, find their average, then subtract the average from each of the numbers (If you have any negative numbers, take the minus sign off to make them positive), then add all the answers up, then divide by the number of values.

Example:

100-88=12

95-88=7

90-88=2

85-88=3

80-88=8

75-88=13

12+7+2+3+8+13=45

45/6=7.5

Average=87.5=88

Average spread=7.5