Math
posted by victoria .
Assume that there are 7 different issues of Newsweek, 8 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.
What is the probability that you choose at least 1 of the Time magazines?

With no restriction, number of ways to choose 4
 C(19.4) = 3876
number of ways to choose 4 with NO Time magazines
= C(11,4) = 330
so the number of ways with at least one Time = 3876330 = 3546
prob(at least one Time) = 3546/3876 = 591/646 or appr .915 
thank you so much! i appreciate you writing out how to solve it rather than just giving me an answer by itself....def helped me understand
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