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The final exam scores in a class were normally distributed with a mean of 63 and a standard deviation of five. a)Find the probability that

The final exam scores in a class were normally distributed with a mean of 63 and a standard deviation of five.

a)Find the probability that a randomly selected student scored at least 68 on the exam.

b)Find the probability the randomly selected student scored at most 81.

c)Find the 87thpercentile.

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