Consider the following in respect of two events A and B :
1.P(A occurs but not B) = P(A) – P(B) if B ⊂ A
2.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 exclusive
Which of the above is/are correct ?
Mathematics
2018
NDA Mathematics 2018
NDA 2018
Options
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