If P(A) = 0.5, P(B) = 0.4 and P(A ∪ B) = 0.8, then P(A – B) =
0.1
0.4
0.9
0.8
P(A ∩ B)= 0.1, P(A-B)= P(A) - P(A ∩ B) = 0.4
If P(A) = 0.8, P(B) = 0.5 and P(B|A) = 0.4, find
(i) P(A ∩ B) (ii) P(A|B) (iii) P(A ∪ B)