# sympy.stats.variance() function in Python

• Last Updated : 01 Jun, 2020

In mathematics, the variance is the way to check the difference between the actual value and any random input, i.e variance can be calculated as a squared difference of these two values. With the help of `sympy.stats.variance()` method, we can calculate the value of variance by using this method.

Syntax : `sympy.stats.variance(value)`

Return : Return the value of variance.

Example #1 :
In this example we can see that by using `sympy.stats.variance()` method, we are able to calculate the value of variance using this method.

 `# Import Sympy and variance``from` `sympy.stats ``import` `P, variance, Die`` ` `X, Y ``=` `Die(``'X'``, ``5``), Die(``'Y'``, ``3``)`` ` `# Using stats.variance() method``gfg ``=` `variance(X ``+` `Y)`` ` `print``(gfg)`

Output :

```8/3
```

Example #2 :

 `# Import Sympy and variance``from` `sympy.stats ``import` `P, variance, Die`` ` `X, Y ``=` `Die(``'X'``, ``2``), Die(``'Y'``, ``4``)`` ` `# Using stats.variance() method``gfg ``=` `variance(X ``*` `Y)`` ` `print``(gfg)`

Output :

```75/16
```
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