名词
中文翻译：抽样均值
同义词：
['sample mean', 'sample average']
例句：
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1.To estimate the population mean, we need to take a representative sample of the population.
为了估计人口均值，我们需要从人群中抽取一个代表性样本。
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2. The sampling mean is calculated by taking the average of all the values in the sample.
抽样均值是通过计算样本中所有值的平均值得出的。
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3.The sampling mean is often used to represent the central tendency of a population.
抽样均值常常用来代表人群的中心倾向。