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Question

A and B are two events such that P(A)0,P(B/A) if.
(i) A is a subset of B
(ii)AB=Φ are respectively

A
0,1
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B
1,0
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C
1,1
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D
0,0
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Solution

The correct option is B 1,0
Note that P(B/A)=P(AB)P(A)
(i) If A is subset of B, then AB=AP(AB)=P(A)
Thus P(B/A)=P(A)P(A)=1
(ii) If AB=Φ, then P(AB)=0
So P(B/A)=0P(A)=0

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