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1.The mean value of the population is calculated using a formula.
使用公式计算人口的平均价值。
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2.The periodic quantity of the data has an impact on the analysis results.
数据周期量对分析结果有影响。
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3. The study aims to find the mean value and periodic quantity of the data.
研究旨在找到数据的平均值和周期性量。