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

So clearly, that's not, thank you, that's not a profitable deviation and it's also not a profitable deviation for people on the left.

所以很明显,那不是,谢谢,那不是个有利的偏离并且,对左边的人来说也不是个有利的偏离

耶鲁公开课 - 博弈论课程节选

Let's suppose that all of them are the same-- they all have the same standard deviation.

我们假设这些资产的收益率标准差-,均相等。

耶鲁公开课 - 金融市场课程节选

Third, a policy aimed at facilitating employee ownership: S corporation employee stock ownership plans (S ESOPs) are also a deviation from a pure income tax system, but the benefits of promoting employee ownership are broad based and well established.

FORBES: Tough Politics Are the Barriers To True Tax Simplification

This kitchen might be smart, but it's also a place where every mistake, every deviation from the master plan, is frowned upon.

WSJ: Are Smart Gadgets Making Us Dumb?

If you rank the countries of the world in terms of the academic performance of their schoolchildren, the U.S. is just below average, half a standard deviation below a clump of relatively high-performing countries like Canada and Belgium.

NEWYORKER: Most Likely to Succeed