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Wisconsin Graduation

Wisconsin has the highest high school graduation rate of all states at 90%.

a. In a random sample of 10 Wisconsin high school students, what is the probability that 9 will graduate?

b. In a random sample of 10 Wisconsin high school students, what is the probability than 8 or fewer will graduate?

c. What is the probability that at least 9 high school students in our sample of 10 will graduate?

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