Let P be the probability function on S = (X 1 , X 2 , X 3 ) if P(X 1 ) = 1 / 4 and P(X 3 ) = 1 / 3 , then P(X 2 ) is equal to

CA Foundation · Quantitative Aptitude · MTP · January 2026
Let P be the probability function on S = (X 1 , X 2 , X 3 ) if P(X 1 ) = 1 / 4 and P(X 3 ) = 1 / 3 , then P(X 2 ) is equal to
(A) A. 5 / 12
(B) B. 7 / 12
(C) C. 3 / 4
(D) D. None of these

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. 5 / 12

Topics: Part-C: Statistics

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