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A researcher would like to study BMI levels in adults 20-40 years of age. She selected 9 patients and found their BMI values to be:

A researcher would like to study BMI levels in adults 20-40 years of age. She selected 9 patients and found their BMI values to be: 25, 19, 28, 30, 32, 37, 22, 27, 24

The standard deviation of BMI levels of this group of patients is

Group of answer choices

6.6

5.9

5.4

5.7

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