The sum of the deviations from the mean will always be equal to ______.

A) 0
B) 0.
C) n - 1
D) n + 1

Deviations

Differences from a central value, such as the mean or median, indicative of variability within a data set.

Mean

The arithmetic average of a set of numbers, calculated by adding all the numbers and dividing by the count of numbers.