Two balls are drawn in succession out of a box containing 4 red and 4 white balls. Find the probability that at least 1 ball was red, given that the first ball was
(A) Replaced before the second draw.
(B) Not replaced before the second draw.
(A) Find the probability that at least 1 ball was red, given that the first ball was replaced before the second draw.
.75
(B) Find the probability that at least 1 ball was red, given that the first ball was not replaced before the second draw.