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Question

The probability of the occurrence of two independent events (A and B) is known to be each greater than 12. Its given that probability of the occurrence of the second event is 325. Also the probability of the occurrence of second simultaneously with the first not occurring is 825. Find the probability of the events.

A
P(A)=45, P(B)=35
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B
P(A)=425, P(B)=425
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C
P(A)=35, P(B)=45
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D
P(A)=325, P(B)=425
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Solution

The correct option is C P(A)=35, P(B)=45
P(A¯¯¯¯B)=325=P(A)P(A)P(B) ...(1)
P(¯¯¯¯AB)=825=P(B)P(A)P(B) ...(2)
From (1) and (2)
P(A)=35,P(B)=45

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