SOLUTION: If A and B are two events, then P(AUB)=? (when A and B are disjoint)

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Question 1142899: If A and B are two events, then P(AUB)=? (when A and B are disjoint)
Answer by ikleyn(52848) About Me  (Show Source):
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If events A and B are disjoint, then  P(A U B) = P(A) + P(B) by the definition of disjoint events.