Find P(A) if P(Ā)=0.018?

A. 0.012

B. 0.018

C. 0.482

D. 0.982

please explain how u got the answer. thnx.

1 Answer

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  • 9 years ago
    Favorite Answer

    We know that P(A)+P(~A) = 1,

    Now subtract P(~A) from both sides

    P(A) + P(~A) - P(~A) = 1 - P(~A)

    Now we have

    P(A) = 1 - P(~A) - .018 = .0982, since P(~A) = .018

    So the answer is D.

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