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
1
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