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Assume that fasting glucose levels in patients free of diabetes follow a normal distribution with a...

Assume that fasting glucose levels in patients free of diabetes follow a normal distribution with a mean of 76 mg/dL and a standard deviation of 21. What proportion of patients have glucose levels exceeding 90 mg/dL? If a patient has a glucose level of 115 mg/dL, what percentile is this? What is the probability that the mean glucose level exceeds 100 mg/dL in a sample of 15 patients?

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