Law of total variance
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Analysis of variance(ANOVA)Stats/analysisAnalytics 2019. 10. 5. 22:43
1. Overview Analysis of variance (ANOVA) is a collection of statistical models and their associated estimation procedures (such as the "variation" among and between groups) used to analyze the differences among group means in a sample. The ANOVA is based on the law of total variance, where the observed variance in a particular variable is partitioned into components attributable to different sou..