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Question

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


A

0.1

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B

0.4

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C

0.9

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D

0.8

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Solution

The correct option is B

0.4


P(A B)= 0.1, P(A-B)= P(A) - P(A B) = 0.4


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