The standard and standard deviation of plum rain intensity index are used to setup the classification standard of plum rain intensity state.

利用梅雨强度指数的标准值，应用其指数均方差建立了强度状态的分级标准。

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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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We tell prospective clients that if their main goal is to minimize standard deviation around the index, save money and buy an index fund.

我们会告诉潜在的客户，如果他们的主要目的是缩小与指数的标准差，那就省点钱去买指数基金。

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Once you know the average return, the standard deviation of each index and the correlation coefficient between each pair of indexes, the rest is math.

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Be careful not to become too enamored with the descriptive name or targeted sector of the portfolio because far too many of them tend to do a predictable standard deviation around a larger market index.

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The MSCI Emerging Markets Index is only about a half of a standard deviation from its mean over the same time frame.

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