Pearson's correlation coefficient

noun

1. In full: Pearson's product moment correlation coefficient. a statistic measuring the linear relationship between two variables in a sample and used as an estimate of the correlation in the whole population, given by r = Cov ( X, Y ) /√ [( Var ( X ) .Var ( Y )]

Word History and Origins

Origin of Pearson's correlation coefficient¹

named after Karl Pearson (1857–1936), British mathematician

Example Sentences

Growth rates of larger sizes correlate with a Pearson’s correlation coefficient of 0.94, growth rates at smaller size with a Pearson’s correlation coefficient of 0.7.

From Nature