Variance calculator is a statistical online tool to calculate the variance of a population. It is defined as how far the set of data is spread out or in other words, variance is the square of standard deviation. The equation to find out the variance is given below.


V=$\frac{1}{N}\sum_{i=1}^{N}(x_{i}-\mu )^{2}$


Where N is the total number of observations
          $\mu$ is the mean
Step1: Calculate the value of mean from the given data using following equation.

$\mu$ =$\frac{x_{1}+x_{2}+x_{3}+......+x_{n}}{N}$

Where N is the total number of observations

Step2: Find the variance using the given formula.

V=$\frac{1}{N}\sum_{i=1}^{N}(x_{i}-\mu )^{2}$