## Standard Deviation Calculator

All your calculations have now become easy with Standard deviation (σ) calculator, calculate your mean value & variance online.

## Population & sampled standard deviation calculator

To calculate, enter the data values, delimited with the spaces or** **with the commas and hit the calculate button.

[Math_m_Standard_Deviation_Calculator]

## Discrete random variable standard deviation calculator

You can enter the probability or the weight and the data number in all the rows.

**[Math_m_Standard_Deviation_Calculator2]**

## Calculation for Whole population standard deviation

The value Population mean is apparently equal to,

The value of Population standard deviation is apparently equal to,

## Sampled data standard deviation calculation

The value of the Sample mean can be find with the help of the formula provided,

The formula to calculate sample standard deviation,

## Calculation for discrete random variable standard deviation

The value of the Random variable mean is apparently equal to,

The value of Discrete random variable standard deviation is apparently equal to,