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If P(A) = 3/4 , P(B) = 2/5 , P(Ann B) = ...

If P(A) = 3/4 , P(B) = 2/5 , `P(Ann B) `= 1/4 then` P(A uu B) `=

A

`9//10`

B

`10//12`

C

`23//30`

D

`5//8`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A: If P(A) = 3//7 , P(B) = 2//7 , P(A cap B) = 1//7 then P(A cap B) = 4//7 R:If A,B, are two events in a sample space S then P(AcupB) = P(A)-P(A capB)

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and R are true is not correct explanation of A.
    C
    A is true but R is false
    D
    A is false but R is true

  • If P(B) = 4/5, P(AcapB) = 3/10 then P(A|B)=

    A
    `1//3`
    B
    `3//5`
    C
    `1//2`
    D
    `3//8`

  • If P(A) = 2/5, P(AcapB) = 3//10 then P(B|A) =

    A
    `1//3`
    B
    `3//5`
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    D
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