correlation coefficient

American  

noun

Statistics.

1. one of a number of measures of correlation, usually assuming values from +1 to −1.

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correlation coefficient British  

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

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Etymology

Origin of correlation coefficient

First recorded in 1905–10

Example Sentences

According to Kim, people often think first of Pearson's correlation coefficient when they hear the word agreement, since it is introduced early in statistics education and remains a fundamental tool.

From Science Daily

And he rattles off mathematical terms such as “correlation coefficient” and “sixth order polynomial” that might not be familiar to his audience.

From Los Angeles Times

A low “correlation coefficient,” marked in blue, is usually an indicator of spiky objects in the atmosphere that aren’t rain or hail.

From Washington Post

Their correlation coefficient has risen to 0.41 now from 0.1 in September, where zero means no correlation and 1 implies perfectly synchronised movement.

From Reuters

The correlation coefficient from comparing the increase in bar foot traffic and the increase in cases per capita three weeks later is .489 for 43 point.

From Washington Post