Assume that there are 8 different issues
of Popular Science, 7 different issues of Time,
and 4 different issues of Sports Illustrated, including
the December 1st issue, on the rack. You
choose 4 of them at random.
(1) What is the probability that you choose 3
issues of Popular Science and 1 issue of Time?
(2) What is the probability that you choose at
least 3 of the Time magazines?

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P(1) = 4C3 * (7/19)*(8/18)*(7/17)*(6/16)

P(3 PS and 1 Ti) = [C(8,3)C(7,1)] / C(19,4) = 98/969 = .101 approx

no

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