Find the sum of the deviations of the variable values 3, 4, 6, 7, 8, 14 from their mean.
Values are 3, 4, 6, 7, 8, 14
Therefore, Mean =
=
= 42/6
= 7
Therefore, sum of deviation of values from their mean
= (3 – 7) + (4 – 7) + (6 – 7) + (7 – 7) + (8 – 7) + (14 – 7)
= (-4) + (-3) + (-1) + (0) + (1) + (7)
= - 8 + 8
= 0