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Mathematics 11 Online
OpenStudy (anonymous):

If the variance of the ages of the people who attended an opera is 47, what is the standard deviation of the ages? Round your answer to two decimal places. A. 8.89 B. 7.62 C. 6.86 D. 8.12

OpenStudy (error1603):

C.6.86 standard deviation =sqrt(variance)

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