SOLUTION: If P(A) = 0.4, P(B) = 0.7, and A and B are independent, find P(A or B).

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Question 947767: If P(A) = 0.4, P(B) = 0.7, and A and B are independent, find P(A or B).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If P(A) = 0.4, P(B) = 0.7, and A and B are independent, find P(A or B).
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P(A or B) = P(A) + P(B) - P(A and B)
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= 0.4 + 0.7 - (0.4*0.7)
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= 1.1 - 0.28
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= 0.82
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Cheers,
Stan H.