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OpenStudy (anonymous):
Events A and B are disjointed. P(A) =8/15; P(B) =4/15 Find P(A or B). 8/15 4/15 11/15 4/5
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OpenStudy (anonymous):
11/15
jimthompson5910 (jim_thompson5910):
Since the events are disjoint, this means P(A or B) = P(A) + P(B)
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