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      Question

      If A and B are events such that P(A|B) = P(B|A), then

      which of the following is true
      A A тКВ B but A тЙа B Correct Answer Incorrect Answer
      B A = B Correct Answer Incorrect Answer
      C A тИй B = ╧Ж Correct Answer Incorrect Answer
      D P(A) = P(B) Correct Answer Incorrect Answer

      Solution

      It is given that, P(A|B) = P(B|A) => P(A тИй B)/P(B) = P(A тИй B)/P(A) => P(A) = P(B)

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