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Unformatted text preview: one person can win an election with A representing Party As candidate and B representing Party Bs candidate, it would be a mutually exclusive event because both candidates victories cannot happen simultaneously. Conditions under P(A and B) = P(A) x P(B) are true when the two events are independent. For dependent events, we use P(A and B) = P(A) x P(B, given that A has occurred) or P(A and B) = P(B) x P(A, given that B has occurred). Conditions under which P(A or B) = P(A) + P(B) is true is when the event is mutually exclusive. If the events are not mutually exclusive, for any events A and B, P(A or B) = P(A) + P(B) P(A and B)....
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 Spring '09
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