Question

For the standard deviation how do you transfer 10,074 to 100.37 For the sample variance how do you make 10,074 to 10,074

Answer 1

We have a calculation of the sample standard deviation and the sample variance.

The standard deviation is calculated with the following formula:

$\sigma=\frac{1}{n-1}\sum ^n_{i=1}(x_i-M)^2$

M: sample mean.

The standard deviation in this case has he value:

$\sigma=\sqrt[]{\frac{30,222}{3}=\sqrt[]{10,074}\approx100.37}$

Key to calculate the square root.