Rank correlation | Wikipedia audio article
Channel: wikipedia tts
Date: 06/10/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Rank_correlation


00:00:12 1 Context
00:00:25 2 Correlation coefficients
00:00:38 3 General correlation coefficient
00:01:16 4 Rank-biserial correlation
00:01:36 4.1 Kerby simple difference formula
00:02:46 4.2 Example and interpretation
00:02:59 5 References
00:03:12 6 Further reading
00:03:25 7 External links
00:03:37 1, which means that 100% of the pairs favor the hypothesis.  A correlation of r



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SUMMARY
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In statistics, a rank correlation is any of several statistics that measure an ordinal association—the relationship between rankings of different ordinal variables or different rankings of the same variable, where a "ranking" is the assignment of the ordering labels "first", "second", "third", etc. to different observations of a particular variable.  A rank correlation coefficient measures the degree of similarity between two rankings, and can be used to assess the significance of the relation between them.  For example, two common nonparametric methods of significance that use rank correlation are the Mann–Whitney U test and the Wilcoxon signed-rank test.