If P(A) = 3|10, P(B) = 2|5 and P(A B) = 3|5, then P(B|A) + P(A|B) equals


We have,


P(A B) = P(A) + P(B) – P(A B)


[Additive Law of Probability]






Now, We know that the Property of Conditional Probability:


P(A|B) × P(B) = P(A B)


…(i)


P(B|A) × P(A) = P(B A)


…(ii)


Multiplying eq. (i) and (ii), we get







Hence, the Correct option is D

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