Find the Variance 127 135 128 131 133 127 122

Math
The mean of a set of numbers is the sum divided by the number of terms.
Simplify the numerator.
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Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Divide by .
Set up the formula for variance. The variance of a set of values is a measure of the spread of its values.
Set up the formula for variance for this set of numbers.
Simplify the result.
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Simplify the numerator.
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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 .
Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Simplify the expression.
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Subtract from .
Divide by .
Approximate the result.
Find the Variance 127 135 128 131 133 127 122

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