PROBABILITY
Thus the probability that B gets selected is 0.25. Example 2 The probability of simultaneous occurrence of at least one of two events A and B is p. If the probability that exactly one of A, B occurs is q, then prove that P (A′) + P (B′) = 2 – 2p + q. Solution Since P (exactly one of A, B occurs) = q (given), we get P (A∪B) – P ( A∩B ...
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