The degrees of correlation between two or more variables can be estimated accurately by such statistical measures as the chi-square test or the Spearman rank-order test.

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The chi-square test is used to determine if there is a significant association between two categorical variables, while the Spearman rank-order test is used to assess the strength and direction of association between two ranked variables, both of which estimate degrees of correlation or association between variables.

The Degrees of Correlation Between Two or More Variables Can