Find the Sample Standard Deviation 12 18 28 14 18 20 12

The mean of a set of numbers is the sum divided by the number of terms.

Simplify the numerator.

Divide.

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

Convert ${\displaystyle 12}$ to a decimal value.

Convert ${\displaystyle 18}$ to a decimal value.

Convert ${\displaystyle 28}$ to a decimal value.

Convert ${\displaystyle 14}$ to a decimal value.

Convert ${\displaystyle 18}$ to a decimal value.

Convert ${\displaystyle 20}$ to a decimal value.

Convert ${\displaystyle 12}$ to a decimal value.

The simplified values are ${\displaystyle 12,18,28,14,18,20,12}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 12}$.

Raise ${\displaystyle -5.4}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 18}$.

Raise ${\displaystyle 0.6}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 28}$.

Raise ${\displaystyle 10.6}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 14}$.

Raise ${\displaystyle -3.4}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 18}$.

Raise ${\displaystyle 0.6}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 20}$.

Raise ${\displaystyle 2.6}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 17.4}$ from ${\displaystyle 12}$.

Raise ${\displaystyle -5.4}$ to the power of ${\displaystyle 2}$.

Add ${\displaystyle 29.16}$ and ${\displaystyle 0.36}$.

Add ${\displaystyle 29.52}$ and ${\displaystyle 112.36}$.

Add ${\displaystyle 141.88}$ and ${\displaystyle 11.56}$.

Add ${\displaystyle 153.44}$ and ${\displaystyle 0.36}$.

Add ${\displaystyle 153.8}$ and ${\displaystyle 6.76}$.

Add ${\displaystyle 160.56}$ and ${\displaystyle 29.16}$.

Subtract ${\displaystyle 1}$ from ${\displaystyle 7}$.

Divide ${\displaystyle 189.72}$ by ${\displaystyle 6}$.