Find the Sample Standard Deviation 10 , 9 , 11 , 12 , 8 , 9 , 7

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 ${\displaystyle 10}$ to a decimal value.

Convert ${\displaystyle 9}$ to a decimal value.

Convert ${\displaystyle 11}$ to a decimal value.

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

Convert ${\displaystyle 8}$ to a decimal value.

Convert ${\displaystyle 9}$ to a decimal value.

Convert ${\displaystyle 7}$ to a decimal value.

The simplified values are ${\displaystyle 10,9,11,12,8,9,7}$.

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 10}$.

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

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 9}$.

Raise ${\displaystyle -0.4}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 11}$.

Raise ${\displaystyle 1.6}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 12}$.

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

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 8}$.

Raise ${\displaystyle -1.4}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 9}$.

Raise ${\displaystyle -0.4}$ to the power of ${\displaystyle 2}$.

Subtract ${\displaystyle 9.4}$ from ${\displaystyle 7}$.

Raise ${\displaystyle -2.4}$ to the power of ${\displaystyle 2}$.

Add ${\displaystyle 0.36}$ and ${\displaystyle 0.16}$.

Add ${\displaystyle 0.52}$ and ${\displaystyle 2.56}$.

Add ${\displaystyle 3.08}$ and ${\displaystyle 6.76}$.

Add ${\displaystyle 9.84}$ and ${\displaystyle 1.96}$.

Add ${\displaystyle 11.8}$ and ${\displaystyle 0.16}$.

Add ${\displaystyle 11.96}$ and ${\displaystyle 5.76}$.

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

Divide ${\displaystyle 17.72}$ by ${\displaystyle 6}$.