variance
US /ˈver.i.əns/
UK /ˈver.i.əns/
1.
the fact or quality of being different, divergent, or inconsistent
:
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There was a significant variance in the test results.
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The committee noted the variance between the two reports.
2.
the square of the standard deviation
:
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In statistics, variance measures how far a set of numbers is spread out.
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Calculating the variance is a key step in many statistical analyses.