If A and B are events with P(A)=0.3, P(A OR B)=0.81, and P(A AND B)=0.09, find...

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Question

If A and B are events with P(A)=0.3, P(A OR B)=0.81, and P(A AND B)=0.09, find P(B).

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math Statistics-And-Probability

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