名词
中文翻译：Unknown
同义词：
['mean line', 'average line', 'mean value line']
例句：
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1. Themean square line is used to measure the variability of a dataset.
均方线用于衡量数据集的变异性。
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2. The mean square line is often used in statistical analysis to identify outliers.
在统计分析中，均值平方线常被用来识别异常值。
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3. The mean square line is calculated by taking the square root of the sum of squares of all observations.
均值平方线是通过将所有观测值的平方和开平方根来计算的。