# Standard Deviation

**Definition:** This function is a statistical function allowing you to get the standard deviation of values according to any other factor.

**Example:** We are getting standard deviation of student_age by year. You can type a command like

```
Show standard deviationof student_age by year
```

where in year wise we are trying to find standard deviation of student_age. This will create an additional file with the output of the above command.

Note 1

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Note 2

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