Consider the following in respect of two events A and B:1) P(A occurs but not B) = P(A) – P(B) if B ⊂ A2) P(A alone or B alone occurs) = P(A) + P(B) – P(A ∩ B)3) P(A ∪ B) = P(A) + P(B) if A and B are mutually exclusiveWhich of the above is/are correct?

Consider the following in respect of two events A and B:1) P(A occurs

1.	Consider the following in respect of two events A and B:1) P(A occurs but not B) = P(A) – P(B) if B ⊂ A2) P(A alone or B alone occurs) = P(A) + P(B) – P(A ∩ B)3) P(A ∪ B) = P(A) + P(B) if A and B are mutually exclusiveWhich of the above is/are correct?
A.	1 only
B.	1 and 3 only
C.	2 and 3 only
D.	1 and 2 only
Answer» C. 2 and 3 only

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Consider the following in respect of two events A and B:1) P(A occurs but not B) = P(A) – P(B) if B ⊂ A2) P(A alone or B alone occurs) = P(A) + P(B) – P(A ∩ B)3) P(A ∪ B) = P(A) + P(B) if A and B are mutually exclusiveWhich of the above is/are correct?

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