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Assume that the GPA of a randomly chosen college student has a normal distribution with mean...

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Basic Math

Assume that the GPA of a randomly chosen college student has anormal distribution with mean 2.84 and standard deviation 0.42.

a. Find the probability that a randomly chosen college studenthas a GPA of at least 2.30.

b. If then college students are independently selected, what isthe probability that exactly nine of them have a GPA of at least2.30.

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