correlation coefficient
柯林斯词典
1. N 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 相關系數[statistics] →see alsoPearson's correlation coefficient ,Spearman's rank-order coefficient
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