Q. 52

# Mark the correct alternative in each of the following:

If two events are independent, then

A. they must be mutually exclusive

B. the sum of their probabilities must be equal to 1

C. (a) and (b) both are correct

D. none of the above is correct

Answer :

Let A and B be two independent events, then,

P(A∩B) = P(A) P(B)

P(A∩B) 0 → Not mutually exclusive

Or,

P(A) + P(B) 1 → Their sum of probabilities is not 1

None of the above is correct.

Rate this question :

If A and B are two independent events such that P(A’ ∩ B) = 2/15 and P(A ∩ B’) = 1/6 then find P(A) and P(B).

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