We are going to calculate the standard deviation for the following set of sample data. 14,10,7,12,2

1) First, calculate the mean.
$\displaystyle \mu=$

2) Fill in the table below. Fill in the differences of each data value from the mean, then the squared differences.
3) Calculate the standard deviation.

$\displaystyle {x}$	$\displaystyle {x}-\mu$	$\displaystyle {\left({x}-\mu\right)}^{{2}}$
14
10
7
12
2
	Total

Standard deviation:
$\displaystyle \sigma=\sqrt{{{\frac{{\sum{\left({x}-\mu\right)}^{{2}}}}{{{N}}}}}}=$ Round to two decimal places