Q. 42

Mark the correct alternative in each of the following:

If A and B are two independent events with then equals.

A. 4/15

B. 8/45

C. 1/3

D. 2/9

Answer :


Now as we know,

= 1 – P(AB) (1)

Since, A and B are two independent events,

P(AB) = P(A) P(B)


Now, according to the addition theorem of probability,

P(AB) = P(A) + P(B) – P(AB)

From (2)


Using (3) in equation (1) we get,

= 1 – P(AB)

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