But they're accountable and we can list all possible values when they're discrete and form a probability weighted average of the outcomes.

但随机变量是离散的话,我们可以把所有的可能值列出来,然后算出加权平均值

耶鲁公开课 - 金融市场课程节选

I've made a very special case that this is the case of an equally-weighted portfolio.

在这里我假设了一个特例,即一个各项资产权重相等的投资组合。

耶鲁公开课 - 金融市场课程节选

But if you look at the tech fund category, the difference between the dollar-weighted and the time-weighted returns--this is over a ten-year period -is 13.4% per annum; that's stunning.

但是如果你关注科技投资基金,十年间,货币加权回报率,和时间加权回报率间的差距,是每年13.4%,这是非常夸张的

耶鲁公开课 - 金融市场课程节选

Well, there's another way to look at returns -those are the dollar-weighted returns -and the dollar-weighted returns actually do a better job of describing the experience of the group of investors that participated in these funds.

还有另一种考察回报率的参数,货币加权回报,货币加权回报实际上,是描述基金参与者收益的,一个更好的指标

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