correlation Meaning and Definition
1. n. 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
2. n. 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)
3. n. a reciprocal relation between two or more things
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