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correlation coefficient

noun, Statistics.
1.
one of a number of measures of correlation, usually assuming values from +1 to −1.
Origin
1905-1910
1905-10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for correlation coefficient

correlation coefficient

noun
1.
(statistics) a statistic measuring the degree of correlation between two variables as by dividing their covariance by the square root of the product of their variances. The closer the correlation coefficient is to 1 or –1 the greater the correlation; if it is random, the coefficient is zero See also Pearson's correlation coefficient, Spearman's rank-order coefficient
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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