If a random variable X follows Poisson distribution such that P(X = 1) = P(X=2), then the mean of the distribution is :

CA Foundation · Quantitative Aptitude · PYQS · September 2024
If a random variable X follows Poisson distribution such that P(X = 1) = P(X=2), then the mean of the distribution is :
(A) A. 1
(B) B. 2
(C) C. 0
(D) D. 1 / 2

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 2

Topics: Part-C: Statistics

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