i am having trouble figuring out a conditional probability. this is what is given:
event a has probability of .47
P(A U B) = .78
What is P(A, given that B has occured) if P(B) = .7
I am having some difficulty getting the intersection here so I can do P(A intersect B)/P(B) in a normal conditional probability. I have P(B) = .7 so P(A) is obviously not .47 in this case. P(A) is somewhere between .000000000000001 and .08. Please help and thank you!