Multiple Choice Questions on Given that X and Y are events such that P X 0 3 P Y 0 6 and P X Y 0 2 Find P X Y and P Y X ........ for Mathematics - All Exams Preparation

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Quantitative Aptitude (CDS)

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    Given that X and Y are events such that P(X)=0.3 ,P(Y)=0.6 and P(X?Y)=0.2 .Find P(X/Y) and P(Y/X).?

    2/5,3/7

    Incorrect Answer

    1/3,2/3

    Correct Answer

    4/9,2/4

    Incorrect Answer

    1/4,1/6

    Incorrect Answer
    Explanation:

    As we know that P(X/Y)=P(X?Y)/P(Y)

    = 0.2/0.6

    =1/3

    P(Y/X)=P(X?Y)/P(X)

    =0.2/0.3

    =2/3


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