SOLUTION: A football team consists of 20 freshmen and 20 sophomores, 15 juniors, and 10 seniors. Four players are selected at random to serve as captains. Find the probability that a. all 4

Question 912151: A football team consists of 20 freshmen and 20 sophomores, 15 juniors, and 10 seniors. Four players are selected at random to serve as captains. Find the probability that
a. all 4 are seniors
b. there is 1 each: freshman, sophomore, junior, senior
c. there are 2 sophomores and 2 freshmen
d. at least 1 of the students is a senior
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
total : 20F, 20S,15J,10Sr
4 Selected
P(all Ss) =
P(1 each) =
P(2S AND 2F) =
P(at least Sr) = 1 - P(no Sr) = 1 -
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