Ex 13.1, 17 (MCQ) - Chapter 13 Class 12 Probability

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Ex 13.1, 17 (MCQ) - If A and B are events such that P(A|B) = P(B|A) - Ex 13.1

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Ex 13.1, 17 If A and B are events such that P(A|B) = P(B|A), then (A) A āŠ‚ B but A ā‰  B (B) A = B (C) A āˆ© B = Ļ† (D) P(A) = P(B)Given P(A|B) = P(B|A) (š‘ƒ(š“ āˆ© šµ))/(š‘ƒ(š“)) = (š‘ƒ(š“ āˆ© šµ))/(š‘ƒ(šµ)) 1/(š‘ƒ(š“)) = 1/(š‘ƒ(šµ)) āˆ“ "P(A) = P(B)" So, option (D) is correct

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