SOLUTION: A cage contains 4 black and 5 white mice that are available for a biology experiment. Three mice are selected at random. What is the probability that at least one is black and at

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Question 1020259: A cage contains 4 black and 5 white mice that are available for a biology experiment. Three mice are selected at random. What is the probability that at least one is black and at least one is white?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
P(at least one white) = 1 - P(no white) = 1- (4C3/9C3)