Find the Variance 10%*120

Math
10%⋅120
Convert 10% to a decimal.
x‾=0.1⋅120
Multiply 0.1 by 120.
x‾=12
The mean of a set of numbers is the sum divided by the number of terms.
x‾=121
Divide 12 by 1.
x‾=12
Divide.
x‾=12
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=(12-12)21-1
Simplify the result.
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Subtract 1 from 1.
s=(12-12)20
The expression contains a division by 0 The expression is undefined.
s=Undefined
Undefined
Approximate the result.
s2≈NaN
Find the Variance 10%*120

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