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OpenStudy (anonymous):
Events A and B are mutually exclusive. Also, P(A) = 0.12 and P(B) = 0.25. What is P(A or B)?
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ganeshie8 (ganeshie8):
since the events are mutually exclusive you can simply add the probabilties
ganeshie8 (ganeshie8):
P(A or B) = P(A) + P(B)
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