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statistics.variance() - statistics

Return the sample variance of data, an iterable of at least two real-valued
numbers.  Variance, or second moment about the mean, is a measure of the
variability (spread or dispersion) of data.  A large variance indicates that
the data is spread out; a small variance indicates it is clustered closely
around the mean.


Syntax

statistics.variance(data, xbar=None)


Example

>>> data = [2.75, 1.75, 1.25, 0.25, 0.5, 1.25, 3.5]
>>> variance(data)
1.3720238095238095


Output / Return Value


Limitations


Alternatives / See Also


Reference