# Find the Standard Deviation 3261.91 3261.91
Find the mean.
The mean of a set of numbers is the sum divided by the number of terms.
x&OverBar;=3261.911
Divide 3261.91 by 1.
x&OverBar;=3261.91
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.
x&OverBar;=3261.91
x&OverBar;=3261.91
Convert 3261.91 to a decimal value.
3261.91
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.
s=∑i=1n⁡(xi-xavg)2n-1
Set up the formula for standard deviation for this set of numbers.
s=(3261.91-3261.91)21-1
Simplify the result.
Subtract 1 from 1.
s=(3261.91-3261.91)20
The expression contains a division by 0 The expression is undefined.
s=Undefined
Undefined
The standard deviation 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.
Undefined
Find the Standard Deviation 3261.91

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