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statistics 2

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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

  • statistics 2 - ,

    Total players = 65

    a) 10/65, 9/64....

    b) 20/65, 20/64, 15/63, 10/62 (multiply)

    Use the same principles as previous post.

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