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correlation, correlational statistics | a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the other | |
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correlation, correlativity | a reciprocal relation between two or more things | |
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correlation, correlation coefficient, coefficient of correlation | [in statistics] a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation) |