Question

If A and B are events such that

P(A)equals=0.60 and P(A∪B)equals=0.70, find P(B) when

(a) A and B are mutually exclusive;

(b) A and B are independent.

Step 1

**(a)**If events A and B are mutually exclusive events, then, P (A or B) = P(A)+ P(B).

Or, P(B) = P (A or B) – P(A).

Substitute, P (A or B) ...

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