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OpenStudy (anonymous):
i will give out medals! this is so hard please help! please and thank you!! :):):) 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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OpenStudy (anonymous):
P(A or B) = P(A) + P(B) - P(A and B)
OpenStudy (anonymous):
Plug in P(A) and P(B) and solve.
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