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A research study of 100 patients shows that their calcium levels range from 8.8-15.1 milligrams/deciliter (mg/dL), with a mean of 12.1 mg/dL. The calcium levels fall in a normal distribution, with a standard deviation of 1.0 mg/dL. Based on this study, we know that the percentage of calcium values below 10.1 is approximately

a. 1%

b. 2%

c. 5%

d. 8%

e. 16%

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b. 2%