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Standard deviation

Enter the numbers separated by commas.

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The standard deviation of 2, 4, 4, 4, 5, 5, 7, 9 is 2.14 (sample).

Example

Measure how spread out a set of numbers is with the sample standard deviation.

The standard deviation of 2, 4, 4, 4, 5, 5, 7, 9 is 2.14 (sample).

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Methodology

Sample standard deviation is the square root of the sample variance.

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