# Find the Standard Deviation 81 , 85 , 82 , 93 , 85 , 84 , 95 , 87 , 88 , 91

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Find the mean.
The mean of a set of numbers is the sum divided by the number of terms.
Simplify the numerator.
Divide.
Simplify each value in the list.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
Convert to a decimal value.
The simplified values are .
Set up the formula for sample standard deviation. The standard deviation of a set of values is a measure of the spread of its values.
Set up the formula for standard deviation for this set of numbers.
Simplify the result.
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .
Subtract from .
Raise to the power of .