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July 28, 2014

Homework Help: statistics 2

Posted by oscar on Sunday, December 12, 2010 at 11:13am.

A football team consists of 20 each freshmen and sophomores, 15 juniors and 10 seniors. Four players are selected at random to serve as captains. Find the probability that:
a) all four are seniors
b) There is one each: freshman, sophomore, junior and senior.
c) There are 2 sophomores and 2 freshmen
d) At least one of the students is a senior

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