We have a calculation of the sample standard deviation and the sample variance.
The standard deviation is calculated with the following formula:
[tex]\sigma=\frac{1}{n-1}\sum ^n_{i=1}(x_i-M)^2[/tex]
M: sample mean.
The standard deviation in this case has he value:
[tex]\sigma=\sqrt[]{\frac{30,222}{3}=\sqrt[]{10,074}\approx100.37}[/tex]
Key to calculate the square root.
