And this is what they had expected that there would be no relationship, but instead here they saw that there was a linear relationship not to the intensity and the kinetic energy of the electrons, but to the intensity and the number of electrons.

另外一个实验,他们预期这两者没有关系,但他们看到的不是,光强和电子动能的,线性关系，而是光强,和电子数的线性关系。

麻省理工公开课 - 化学原理课程节选

You could always find a portfolio that had a higher expected return for the same standard deviation.

你总是可以找到一个投资组合,具有较高的预期回报,而标准差不变。

耶鲁公开课 - 金融市场课程节选

2% You could say, I think my portfolio has an expected return of 12%-- that would be better than if it had an expected return of 10%.

如果一个投资组合的预期收益率有-,那就比一个只有10%的投资组合要好。

耶鲁公开课 - 金融市场课程节选

Over this time period, that portfolio had an expected return of something like a little over 9% and it had a standard deviation of a little over 9%.

在这个时间段，这个投资组合的预期收益率是,9%多一点%,标准差是9%多一点。

耶鲁公开课 - 金融市场课程节选

The equally-weighted case that I gave a minute ago was one where the two assets had--were at the same-- had the same expected return and the same variance; but this is quite a bit more general.

我刚刚举的相同权重的例子,表示两种资产-,有相同的预期收益和相同的方差;,但这种情况更加普遍一些。

耶鲁公开课 - 金融市场课程节选