以下为句子列表：
英文: 14As we explain in Chapter 8, standard deviation and variance are the correct measures of risk if the returns are normally distributed.
中文: 14如我们在第8章解释，如果回报率呈正态分布标准差和方差是正确的衡量标准。
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英文: 5 Analyze and proactively communicate monthly financial performance by preparing variance reports, monthly package and giving reasonable explanation on the variances.
中文: 跟踪准备成本分析报表，分析预算和实际数之间的差异。
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英文: A deep exploration of Analysis of Variance by Items (ANOVA by items) had been made in this paper, which is very popular in recent years both at home and abroad.
中文: 该文对近年来国内外盛行的基于项目的方差分析做了一个系统深入的探讨。
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英文: A discrete probability distribution named as distribution of exponential difference is presented in this paper, formula to calculate the most probable success number, mathematical expectation and Variance are derived for this distribution, relationship be
中文: 摘要本文提出了一个离散型概率分布：指数差分布，推导了该分布的最可能成功次数、数学期望和方差，探讨了该分布与几何分布的关系，给出了该分布在马尔可夫链模型中的应用。
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英文: A new online coupled algorithm for PCA and MCA which can simultaneously extract the eigenvectors and eigenvalues of the covariance matrix with coupled iterations is obtained.
中文: 给出能同时得到主成分分析或小成分分析所要求的特征值和特征向量的实时算法。
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