The algebraic sum of deviation of set of observations from their arithmetic mean is

CA Foundation · Quantitative Aptitude · PYQS · January 2025
The algebraic sum of deviation of set of observations from their arithmetic mean is
(A) A. √(∑(x i − x̄) 2 / (n-1))
(B) B. ∑x i / n
(C) C. ∑(x i − x̄) / (n-1)
(D) D. Zero

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. Zero

Topics: Part-A: Business Mathematics, Part-C: Statistics

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