Addition Theorem of Probability states that for any two events A and B

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Question

P(A ⋃ B) = P(A) + P(B)

P(A ⋃ B) = P(A) + P(B) + P(A ⋂ B)

P(A ⋃ B) = P(A) + P(B) – P(A ⋂ B)

P(A ⋃ B) = P(A) × P(B)

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If A and B are any two events then the probability of happening of at least one of the events is defined as P(A ⋃ B) = P(A) + P(B) – P(A ⋂ B).

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