Geithner,who appeared on NBC's "Meet the Press" program, said it will take time before average Americans perceive economic improvements.

VOA: standard.2009.11.01

If I want to take the average energy of all of those, what I can do is go over to my data set.

如果我想得到这所有电子能的平均值，我就得去看一下我的数据库。

麻省理工公开课 - 固态化学导论课程节选

Let's take the average over all the different years."

那就把每年的收益率求一个平均数吧

耶鲁公开课 - 金融市场课程节选

we learned that the average number of romantic relationships for people to take positive psychology in 4 years is between zero and one.

我们了解到上积极心理学课的人,在4年里恋爱次数的平均数在0到1之间。

哈佛公开课 - 幸福课课程节选

But we might then wonder, for every person who gets less than the average amount of life-- suppose we take the median, take the amount of life that's exactly, 50 percent of the people get more, 50 percent of the people get less.

但是接着我们可能会想，对于所有活得比平均寿命要短的人-,假设我们取中间数，相对于平均寿命，刚好五成的人活得更长，五成的人活得更短。

耶鲁公开课 - 死亡课程节选

What he says you should do instead is to take the geometric average of gross returns.

他认为应该,对每年的收益求几何平均

耶鲁公开课 - 金融市场课程节选

I computed the returns on the stocks, bonds, and oil for every year from 1983 and I computed the average returns, which I take as the expected returns, I took the standard deviations, and I took the covariance.

我计算了从1983年以来每年的股票,债券和石油的收益，从而得出平均收益率，这些平均收益率作为预期收益率，然后算得标准差及协方差。

耶鲁公开课 - 金融市场课程节选