Find the mean deviation of 1, 2, 3 and 4

Find the mean deviation of 1, 2, 3 and 4

Answer Details

Mean deviation = Σ|x - x|
                                  n
_
x = 2.5
= |1 - 2.5| + |2 - 2.5| + |3 - 2.5| + |4 - 2.5|
                               4
= 4/4 = 1