However, these methods are estimated according to sample variance and covariance estimators of returns.

然而，这些方法都是根据样本的变异数或报酬的共变异数估算的估计值。

youdao

At the same time, according to sample survey and its present performance, the drives welcome the taxi calling service of the high-starred hotels and respond actively.

同时，据抽样调查和目前运行情况，驾驶员对高星级宾馆叫车业务非常欢迎，应标踊跃。

youdao

We prepared a sample PSD layout that is designed according to the Kundli design.

我们准备了遵照坤德里原则设计的PSD格式版面设计示例。

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Obama gains 13 points among pro-choice independent women -- who make up 9 percent of the sample -- and 9 points among pro-choice Republican women, who account for 5 percent of the sample, according to the poll.

CNN: Will her gender sway women to Palin?

The association becomes insignificant, according to the research, beginning in 2008 and continues through the end of the sample period in 2010.

FORBES: Audit Firm Rotation: Maybe Make A Switch When The Government Takes Over

According to Bain analysis, more than 80 percent of the unrealized investments in a sample of buyout funds we examined were completed between 2005 and 2008.

FORBES: Exit Pressures Are Building In Private Equity