Question

about events A and B of a sample space S, but assume that Pr[A′]=0.3, Pr[B]=0.5, and Pr[A′∩B]=0.2.

Find the probabilities of the following events:

(1) Pr[A∩B]=


(2) Pr[A∪B]=


(1) Pr[A′∪B]=

Answer 1

@dan815

Answer 2

do you know where \(A'\cap B\) is in the picture ?

Answer 3

B

Answer 4

shade it in
not B, but \(A'\cap B\)

Answer 5

then what is A′∩B

Answer 6

the stuff in B that is not in A