correlation

Reading level: hard

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun a reciprocal relation between two or more things
noun 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)
noun 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

From Middle French corrélation. Morphologically correlate + -ion.

Correlation of mental and physical, 233. — Our Knowledge of the External World as a Field for Scientific Method in Philosophy, Bertrand Russell
There was no correlation to serial numbers. — Terminal Compromise, Winn Schwartau
But how is the correlation itself ascertained? — Mysticism and Logic and Other Essays, Bertrand Russell

correlativity

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