Analysis of Variance, a statistical method used to compare means across three or more groups to determine if differences are statistically significant. It tests whether the variation between group means is greater than the variation within groups.
Acronym formed from 'analysis of variance,' coined in the early 20th century by statistician Ronald Fisher. The term combines Latin 'analysis' (a loosening, from Greek) with 'variance' from Latin 'variare' meaning to change or differ.
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