名词
中文翻译：平均实践系数
同义词：
['average practice coefficient', 'average-practice factor']
例句：
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1. The coefficientof variation is used to measure the variability in a dataset.
变异系数用于衡量数据集的变异性。
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2. The coefficient of determination explains how much of the variance can be explained by the model.
决定系数解释了模型可以解释多少变异性。
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3. The coefficient of correlation measures the strength of the relationship between two variables.
相关系数衡量两个变量之间关系的强度。