For the first 20 natural numbers, the standard deviation is

CA Foundation · Quantitative Aptitude · MTP · January 2026
For the first 20 natural numbers, the standard deviation is
(A) A. 5.77
(B) B. 7.75
(C) C. 5.64
(D) D. 6.54

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. 5.77

Topics: Part-C: Statistics

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