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Colorado Graduation

Colorado has a high school graduation rate of 75%.

a. In a random sample of 15 Colorado high school students, what is the probability that exactly 9 will graduate?

b. In a random sample of 15 Colorado high school students, what is the probability that 8 or fewer will graduate?

c. What is the probability that at least 9 high school students in our sample of 15 will graduate?

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