# Difference between revisions of "SampleSD Command"

From GeoGebra Manual

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:Returns [[w:Standard_deviation#Estimation|sample standard deviation]] of given [[Lists|list]] of numbers. | :Returns [[w:Standard_deviation#Estimation|sample standard deviation]] of given [[Lists|list]] of numbers. |

## Revision as of 13:50, 10 September 2011

- SampleSD[ <List of Numbers> ]
- Returns sample standard deviation of given list of numbers.
**Example:**`SampleSD[{1, 2, 3}]`

yields*1*.

## CAS Syntax

- SampleSD[ <List of Numbers> ]
- Returns sample standard deviation of given list of numbers. If the list contains undefined variables, it yields a formula for the sample standard deviation.
**Example:**`SampleSD[{1, 2, a}]`

yields \frac{\sqrt{a²-3a+3}}{\sqrt{3}}.