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Suppose that exam grades are approximately normally distributed with a mean of 68 and a standard deviation of 9 points. If a student requires at

Suppose that exam grades are approximately normally distributed with a mean of 68 and a standard deviation of 9 points. If a student requires at least 90 to secure an A, what is the chance of getting an A in this exam? Explain how to apply the p-value to the problem and which probability value can be used as a p-valu. Why

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