但若组合里只有股票和债券，我的标准差会高得多。

But if I would confine myself just to stocks and bonds, then I would get a much higher standard deviation.

youdao

本文提出依据随机参数的均值和标准差取值，将各随机参数取值组合后再用模拟法计算失效概率。

This paper proposed that according to random variables mean value & standard deviation, its values are determined and are combined, then the failure probability is calculated by simulation.

youdao

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。

耶鲁公开课 - 金融市场课程节选

It shows the standard deviation of the return on the portfolio as a function of the expected return on the portfolio.

它是投资组合的收益标准差,关于预期收益率的函数图像。

耶鲁公开课 - 金融市场课程节选

But if I would confine myself just to stocks and bonds, then I would get a much higher standard deviation.

但若组合里只有股票和债券，我的标准差会高得多。

耶鲁公开课 - 金融市场课程节选