Posted by **Jim** on Sunday, October 14, 2012 at 2:38pm.

Suppose P( A given B)= .6, P(at least one of the two events occurs)= .8, and P(exactly one of the two events occurs)=.6. Then P(A) is equal to?

The answer is 2/3. Could someone please explain how to get it. Thanks so much!

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