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Two events A and B are such that P(B) = ...

Two events A and B are such that P(B) = 0.55 and P(AB') = 0.15. The probability of occurrence of at least one of event is

A

`0.70`

B

`0.20`

C

`0.35`

D

`0.30`

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Knowledge Check

  • Two events A and B are such that P(B) = 0.55 and P(A nn B') = 0.15, then probability that at least one of A, B occurs is

    A
    `0.70`
    B
    `0.20`
    C
    `0.35`
    D
    `0.30`

  • If P (E) denotes probability of occurrence of event E, then :

    A
    `P(E)in [-1,1]`
    B
    `P(E) in (1,oo)`
    C
    `P(E)in(0,1)`
    D
    `P(E)in[0,1]`

  • Two events A and B are such that P(not B )=0.8 P(A cup B)=0.5 and P(A|B)=0.4 . Then P(A) is equal to

    A
    0.28
    B
    0.32
    C
    0.38
    D
    None of these

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