So it turns out that the average in this class, the average choice was about 13 1/3, which means two-thirds of the average was 9.

这个游戏的最终结果,平均数大概是13又1/3,它的2/3是9

耶鲁公开课 - 博弈论课程节选

Because very often,if we only study the average, we only see the average,we only see the geometric shapes and completely missed the children on the bus.

因为很多时候，如果我们只研究平均水平，那就只会看到平均的结果，只看到几何形状,完全忽略了汽车上的孩子。

哈佛公开课 - 幸福课课程节选

One person might be a little low one day, another person might be high, a lot of people might-- you might happen to have captured them on an average day, but overall it averages out, so you get a representative sample.

一个人可能某一天少吃些,另一个人可能多吃些,很多人都会这样,你可能正好得出人们,平均每天的摄入量,但把它的整体平均一下,就得到有代表性的结果

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选