(A) If the two balls are drawn with replacement, then
P(B1|W2) = P(W2|B1).
(B) If the two balls are drawn without replacement, then P{B1|W2)=P(W2|B1).
In Problems, two balls are drawn in succession from an urn containing m blue balls and n white balls (m ≥ 2 and n ≥ 2). Discuss the validity of each statement. If the statement is always true, explain why. If not, give a counterexample.