An Intern in the Endocrinology Department Is Asked to Complete

An intern in the endocrinology department is asked to complete a chart review of cholesterol levels of all patients hospitalized with diabetes mellitus-related cardiovascular complications in the past 6 months.  The intern's preliminary data analysis reveals that there were 400 such patients, and that serum cholesterol levels were normally distributed among the patients with a mean of 220 mg/dL and a standard deviation of 10 mg/dL.  Based on these results, how many patients in this study would be expected to have serum cholesterol >240 mg/dL?

A) 2
B) 10
C) 20
D) 64
E) 128

Correct Answer:

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