covariance

kәu'vєәriәns

n. (statistics) the mean value of the product of the deviations of two variates from their respective means

n. 协方差
[化] 协方差

30,657

BNC 频率

21,478

使用频率

covariance 可以分为前缀 co-（共同）和词根 variance（方差），表示两个变量之间的共同变化。

例句

1. Covariance helps us understand how two variables change together.

协方差帮助我们理解两个变量如何共同变化。

2. In statistics, a positive covariance indicates that as one variable increases, the other tends to increase as well.

在统计学中，正协方差表示当一个变量增加时，另一个变量也倾向于增加。

3. Analysts use covariance to assess the relationship between the returns of different investments.

分析师使用协方差来评估不同投资回报之间的关系。