SOLUTION: If P(A)=0.4 , P(B)=0.8 , \ and P(A∩B)=0.2 , \ then 1.) P(A|B)= \ and 2.) P(B|A)=

Algebra ->  Probability-and-statistics -> SOLUTION: If P(A)=0.4 , P(B)=0.8 , \ and P(A∩B)=0.2 , \ then 1.) P(A|B)= \ and 2.) P(B|A)=       Log On


   

Question 1032919: If P(A)=0.4 , P(B)=0.8 , \ and P(A∩B)=0.2 , \ then
1.) P(A|B)= \ and
2.) P(B|A)=
Answer by Edwin McCravy(20059) About Me  (Show Source):
You can put this solution on YOUR website!

Plug in the formula:

P(X|Y) = P(X∩Y)/P(Y)

and simplify. [Note: there is no difference between 
P(X∩Y) and P(Y∩X).  I suppose you knew that.]

Edwin