A and B are two independent events such that P(A)=X and P(AUB)=Y, Y>X. Show that: P(B)=(Y-X)/(1-X) I don't know how to do this - could some one help me please?
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Hello, juliak! . . We know this formula: . .[1] We are given: . Since and are independent: . Substitute into [1]: . Then we have: . . . . . . Factor: . . . . . .Therefore: . . . . . . . . .
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