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Students receive 1 of 4 colored papers (red, blue, green, or yellow). What is the probability that .....?
Students receive 1 of 4 colored papers (red, blue, green, or yellow). What is the probability that 3 of 5 students get the red paper.
p(red) = 1/4
p(not red) = 3/4
P(3 students get red paper)
= [5C3] p(red)^3 p(not red)^(5-3)
= [5!/(3!2!)] (1/4)^3 (3/4)^2
= 0.08789
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