名词
中文翻译：Unknown
同义词：
['Z-score', 'Z-score value']
例句：
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1.The Z-score of the data is -2.5.
数据的Z得分是-2.5。
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2. The Z-score is used to measure the variability of a dataset.
Z得分用于衡量数据集的变异性。
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3.The Z-score is calculated using the formula: Z = (X - μ) / σ, where X is the sample mean, μ is the population mean, and σ is the population standard deviation.
Z得分的计算公式为：Z = (X - μ) / σ，其中X是样本均值，μ是总体均值，σ是总体标准差。