名词
中文翻译：经验法则
同义词：
['empirical rule', 'empirical method']
例句：
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1. The empirical rule states that the population should be divided into two equal parts to find the mean.
经验法则指出，为了找到平均值，人群应该被分成两半。
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2. This empirical method has been proven to be effective in predicting future trends.
这种方法已被证明在预测未来趋势方面是有效的。
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3. In statistics, the empirical rule is used to estimate the population mean when sample data is available.
在统计学中，经验法则被用来估计当样本数据可用时的总体均值。