名词
中文翻译：系数
同义词：
['factor', 'ratio', 'coefficient of variation']
例句：
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1. The coefficient of variation isa measure of how much the data variesfrom the mean.
变异系数是衡量数据与均值差异程度的指标。
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2. In statistics, the coefficient of determination (R²) measures the proportion of variance in adependent variable that can be explained by independentvariables.
在统计学中，决定系数
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3. Thecoefficient of correlation between twovariables is used to determine thestrength and direction of their relationship.
两个变量之间的相关系数用于确定它们之间关系的强度和方向。