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单词 correlation coefficient
释义 correlation coefficient
[´kär·ǝ`lā·shǝn ´kō·i`fish·ǝnt]
STATISTICS
A measurement, which is unchanged by both addition and multiplication of the random variable by positive constants, of the tendency of two random variables X and Y to vary together; it is given by the ratio of the covariance of X and Y to the square root of the product of the variance of X and the variance of Y.
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