# If the variance of the data values in a sample is 225, what is the standard deviation of the data values?

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May 26, 2017

The standard deviation is 15 in the sample of data values.

#### Explanation:

Variance is simply the square of the standard deviation $\left(v = {\sigma}^{2}\right)$.

So if the variance is 225, $\sigma = \sqrt{225}$ or 15.

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