网络释义专业释义
样本方差（sample variance）和 样本标准差 ( sample standard deviation )是两个重要的差异量数，求这样两种统计量的值要根据相应的计算公式来求出，我们在后面的内容将会做出详细的介绍。
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sample standard deviation chart 样本标准差控制图
merging sample standard deviation 合并样本标准差
standard deviation of sample 样本标准差
standard deviation of sample mean 均值的标准偏差
双语例句原声例句
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The standard deviation in Process Capability Index(PCI) is estimated by using the subgroup ranges or the sample standard deviation.
在过程能力分析中通常采用子样级差或样本总体标准差来估计总体标准差。
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A new computational formula of fiducial probability in consideration of sample size and subsample standard deviation is derived from the least squares principle.
利用最小二乘原理，推导出考虑样本容量和子样标准差的求解置信概率的函数，继而确定数据的置信区间，对数据进行筛选。
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Normally distributed data assumes that about 68% of the values in the sample are within 1 standard deviation of the mean.
正态分布数据认为，样本中约68%的数值分布在距离平均值为1的标准偏差之内。
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That's got the lowest possible standard deviation of expected return and that's 25% stocks and 75% bonds with this sample period.
这个组合预期回报的标准差最小,在这一点上，投资组合,由25%的股票和75%的债券构成。
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