Analysis of variance
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. ANOVA was developed by statistician and evolutionary biologist Ronald Fisher. In the ANOVA setting, the observed variance in a particular variable is partitioned into components attributable to different sources of variation. In its simplest form, ANOVA provides a statistical test of whether the population means of several groups are equal, and therefore generalizes the t-test to more than two groups. ANOVA is useful for comparing (testing) three or more group means for statistical significance.
Words
This table shows the example usage of word lists for keywords extraction from the text above.
Word | Word Frequency | Number of Articles | Relevance |
---|---|---|---|
anova | 6 | 74 | 0.526 |
variance | 4 | 730 | 0.279 |