Originally Posted by
bartoncl P(A U B) = .7 P(A U compliment of B) = .9
Find P(A)
I've racked my brain and cannot come up with an answer.
This is all I've managed to calculate, perhaps I'm just missing a connection.
P(A U compliment of B) = P(compliment of B)
P(B) = 1 - P(compliment of B) = .1
P(compliment of A intersect compliment of B) = 1 - P(A U B) = .3
P(A intersect compliment of B) = P(A U B) - P(B) = .6
P(A|compliment of B) =
P(A intersect compliment of B) / P(compliment of B) = 2/3
"This last one establishes dependence."
That is all I could come up with.