Question 7 of 18
What is the standard deviation of this data set? Use a calculator to help you.
Round your answer to the nearest tenth.
11, 16, 22, 28, 29, 30, 31, 34, 37, 38, 43, 49, 56, 78, 99
O A. 25.9
O B. 23.2
O C. 29.3
O D. 27.5
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