英语词汇sample coefficient of variation怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
The research shows that influence of sample variation coefficient on estimated accuracy should be considered.
研究表明，应考虑样本变差系数对估计精度的影响。
2
On the basis of statistical theory, the distribution probability of full graded concrete strength and the relation between the sample size and coefficient of variation are introduced.
运用统计学理论给出了全级配混凝土试件强度的概型分布，导出了试验样本容量与变异系数之间的关系式。

单词	sample coefficient of variation
释义	sample coefficient of variation 简明释义样本变异系数：样本变异系数是用来衡量样本数据的离散程度的统计量。它是标准差与均值的比值，通常以百分比表示。网络释义 1 ?样本变异系数样本变异系数双语例句 1 The research shows that influence of sample variation coefficient on estimated accuracy should be considered. 研究表明，应考虑样本变差系数对估计精度的影响。 2 On the basis of statistical theory, the distribution probability of full graded concrete strength and the relation between the sample size and coefficient of variation are introduced. 运用统计学理论给出了全级配混凝土试件强度的概型分布，导出了试验样本容量与变异系数之间的关系式。
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