名词
中文翻译：Unknown
同义词：
['correlation', 'correlations', 'covariance']
例句：
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1. The covariance between the twovariables is strong, indicating a strong relationshipbetween them.
这两个变量之间的协方差很强，表明它们之间有很强的关系。
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2. The researchersfound that there was a significant covariancebetween the two groups in terms of theirperformance.
研究人员发现两组在表现上存在显著的协方差。
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3. The covariance method is often usedto analyze the relationship between twovariables.
协方差方法常用于分析两个变量之间的关系。