Q3 of 62 Page 1346

Mark (√) against the correct answer in each of the following:

If P(A) = 0.8, P(B) = 0.5 and P(B/A) = 0.4, then P(A/B) =?


P(B/A) =


⇒ And P(A) = 0.8,


⇒ P() = 0.32


So, P(A/B) =


⇒ P(A/B) = = 0.64


⇒ Hence, the answer is b.

More from this chapter

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1

Mark (√) against the correct answer in each of the following:

If A and B are mutually exclusive events such that P(A) = 0.4, P(B) =x and P(A ∪ B) = 0.5, then x = ?


 2

Mark (√) against the correct answer in each of the following:

If A and B are independent events such that P(A) = 0.4, P(B) = x and P(A ∪ B) = 0.5, then x = ?


 4

Mark (√) against the correct answer in each of the following:

If P(A) = , P(B) = and P(A ∪ B) = , then P(A/B)=?


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Mark (√) against the correct answer in each of the following:

If A and B are events such that P(A) = , P(B) = and P(A’ ∪ B’) = , then A and B are