名词
中文翻译：收集系数
同义词：
['收集系数，收集效率系数例句：1. The coefficient of variation is a measure of how much data varies from the mean.（变异系数是衡量数据与均值差异程度的指标。）']
例句：
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1. The coefficient of variation is a measure of how much data varies from 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. The coefficient of determination, also known as R-squared, measures the proportion of variance in the dependent variable that can be explained by the independent variables.
决定系数，也称为R平方，衡量了独立变量能够解释因变量变异的比例。
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3. In this study, we used the coefficient of determination to evaluate the model's predictive power.
在这项研究中，我们使用决定系数来评估模型的预测能力。