[#BloombergLP-bdlsta-Moment-08-variance]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsta.adoc[bdlsta]::xref:BloombergLP/bdlsta/Moment-08.adoc[Moment]::variance
:relfileprefix: ../../../
:mrdocs:

Return the variance of the data set. The behavior is undefined unless `2 <= count`.

== Synopsis

Declared in `<bdlsta_moment.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
double
variance() const;
----


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