Homework Help: Math

Posted by Jen on Tuesday, July 26, 2011 at 7:25pm.

Given that P(A) = 0.5 and P(B) = 0.3, and P(A and B) = 0.21, determine P(B|A).

Math - Anonymous, Tuesday, July 26, 2011 at 7:55pm
P(B|A)=P(A&B)/P(A)
Math - Jen, Tuesday, July 26, 2011 at 8:31pm
OH OKAY SO IT WOULD BE 0.21/0.5 = 0.42??
Math - Anonymous, Tuesday, July 26, 2011 at 9:40pm
yes

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