For a poisson variate X, P(x=2) =3 P(x=4), then the standard deviation of X is

CA Foundation · Quantitative Aptitude · MTP · September 2025
For a poisson variate X, P(x=2) =3 P(x=4), then the standard deviation of X is
(A) A. 2
(B) B. 4
(C) C. √2
(D) D. 3

Suggested Answer and Working Notes:

Correct Answer: Option (C)

C. √2

Topics: Part-C: Statistics

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