Q1 of 105 Page 582

A and B are two events such that P (A) ≠ 0. Find P(B|A), if:

(i) A is a subset of B


(ii) A ∩ B = φ

It is given in the question that,

A and B are two events such that


We have,


∴


Hence,



= 1


(ii) We have,



∴


= 0


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