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Mathematics 12 Online
OpenStudy (anonymous):

If the standard deviation of the data values in a sample is 13, what is the variance of the data values? A. 361 B. 225 C. 169 D. 289

jimthompson5910 (jim_thompson5910):

\[\Large \text{variance} = (\text{standard deviation})^2\]

jimthompson5910 (jim_thompson5910):

example: if the standard deviation is 7, then the variance is 49 since 7^2 = 49.

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