... systematic study 系统研究 systematic variance 系统方差 systematization 系统化 ...
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variance estimates for systematic samples 系统样本的方差估计值 ; 等距样本的方差估计值
variance for systematic sampling 系统抽样方差
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In the case of IFAs, there is evidence of reduced portfolio variance, systematic and unsystematic, as a result of such involvement, but no traces of such an effect remain in the bank advisor sample.
FORBES: Why Advisors Don't Add Value
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