Question

Find the variance of 101, 102, 100, 100, 110, 109, 109, 108, 109how do i do this

Answer 1

Given the data;

$101,102,100,100,110,109,109,108,109$

We want to find the variance of the given data.

The formula for variance can be written as;

$s^2=\frac{\Sigma(x-\bar{x})^2}{n-1}$

Where;

n = number of data

$\begin{gathered} s^2=variance \\ \bar{x}=\operatorname{mean}\text{ of data} \end{gathered}$

Firstly, let us calculate the mean p