# Find the Variance 7%*85

7%⋅85
Convert 7% to a decimal.
x&OverBar;=0.07⋅85
Multiply 0.07 by 85.
x&OverBar;=5.95
The mean of a set of numbers is the sum divided by the number of terms.
x&OverBar;=5.951
Divide 5.95 by 1.
x&OverBar;=5.95
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;=5.95
Set up the formula for variance. The variance of a set of values is a measure of the spread of its values.
s2=∑i=1n⁡(xi-xavg)2n-1
Set up the formula for variance for this set of numbers.
s=(5.95-5.95)21-1
Simplify the result.
Subtract 1 from 1.
s=(5.95-5.95)20
The expression contains a division by 0 The expression is undefined.
s=Undefined
Undefined
Approximate the result.
s2≈NaN
Find the Variance 7%*85

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