To find the mean absolute deviation you must use the formula
Absolute Deviation = Σ|x - μl / N
x represents score μ represents mean Σ represents sum N represents numbers of scores
1. find mean ( add all values) add all values / the amount of numbers given 9 + 7 + 6 + 8 + 7 + 5 = 42 42/6 = 7 (I got 6 because there are 6 numbers that are given)
therefore μ = 42 and N = 6
find the distance of each value from that mean (7)
value distance 9 2 7 0 6 1 8 1 7 0 5 3
add the distance 2 + 0 + 1 + 1 + 0 + 3 = 7 divide by the number of values given which is 6 7/6 = 1.166 = 1.2
therefore the mean is 7 and the mean deviation is 1.2
the absolute deviation
since you have the mean which is 7 you have to subtract the values given by 7 |x - μl so the formula is |x - 7l 9 -7 = 2 7 - 7 = 0 6 - 7 = -1 8 - 7 = 1 7 - 7 = 0 5 - 7 = -2
