## About This Tool

The online Sample Standard Deviation Calculator is used to calculate the sample standard deviation of a set of numbers.

## Sample Standard Deviation

A sample standard deviation is an estimate, based on a sample, of a population standard deviation. It provides an important measures of variation or spread in a set of data.

## Formula

The following is the sample standard deviation formula:

Where:

s = sample standard deviation

x_{1}, ..., x_{N} = the sample data set

x̄ = mean value of the sample data set

N = size of the sample data set