And he defined the average in terms of not the sum divided by two, but he chose the geometric mean.

鲍林定义平均并不是,简单相加在除以二，他选择几何平均。

麻省理工公开课 - 固态化学导论课程节选

I mean, the average, you know, the sort of typical workdays, 8 or 9 hours.

我是说，平均而言，正常的工作日，八九个小时。

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Another important concept in probability theory that we will use a lot is expected value, the mean, or average-- those are all roughly interchangeable concepts.

概率论中另外一个常用的重要的概念是,期望值或者也叫均值,这两个概念可以互换

耶鲁公开课 - 金融市场课程节选

In fact, there are some very old books that show this as the average, the sum divided by two arithmetic mean, but the modern practice is to use the geometric mean.

事实上，一些很老的书籍上,平均的定义就是算数意义的，总的来说被分为两种算数意义，但现代我们多用几何意义。

麻省理工公开课 - 固态化学导论课程节选

People also call that the mean or the average.

也可以叫做平均值

耶鲁公开课 - 金融市场课程节选

We have expected value, mean or average.

我们可以用期望值,或者是平均值

耶鲁公开课 - 金融市场课程节选