Greek

AKA Econ 483 is kicking my butt!  Big time!!!!!  My hat is off to anyone who deals with this for a living. 

If P(A) = 0.80, P(B) = 0.98, then, and P(A  B) = 0.78, then P(AB) =

Here is how to proceed

P(A/B) = P(A  B)/P(B)

Need to find P(A  B)

P(A  B) = 0.80

P(A  B) = P(A) + P(B) –P(A  B)

P(A  B) = P(A) + P(B) - P(A  B) = ???

So P(A  B) = 0.80

P(A/B) = P(A  B)/P(B) = ??

Because this girl needed more than just a little hint or a couple of question marks to figure this out.  I might be in trouble this semester.  Just sayin.