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# The sum of the squares of the deviations of the values of the variable is _______ when taken about their arithmetic mean.

$\begin{array}{1 1}(A)\; 0 \\(B)\;minimum \\(C)\;maximum \\(D)\;equal \end{array}$

The sum of the squares of the deviations of the values of the variable is minimum when taken about their arithmetic mean.
Hence B is the correct answer.