Question Number: #Mat9890

Which of the following equalities is not necessarily true if A,B are events?


A.) None Of These
B.) P(A∩B)= P(A). P(B)
C.) P(A U B) = P(A) + P(B) - P(A∩B)
D.) P(A∩B)= P(A). P(B|A)

Answer is option : B


P(A∩B) =P(A). P(B) is true if and only if the events A & B are independent events.

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