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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
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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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