When two events A and B are not mutually exclusive, the probability that A or B occurs is P(A or B) = P(A) + P(B) - P(A and B)
Added by Ethan J.
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Two events are mutually exclusive if they cannot occur at the same time. For example, if we toss a coin, the events of getting heads and getting tails are mutually exclusive. However, if two events are not mutually exclusive, they can occur at the same time. For Show more…
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Events A and B are said to be mutually exclusive if a) P(A) = 0, b) P(B) = 0, c) P(A|B) = 0, d) P(A∩B) = 0, e) P(A) = P(B).
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