The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from
A)Harmonic mean
B)Geometric mean
C)Median
D)Arithmetic mean

Question

Quizplus · Accepted Answer

The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from the Arithmetic mean. This is a fundamental principle in statistics, particularly in the method of least squares.

The Sum of the Squares of the Deviations of the Values