来自《耶鲁大学开放课程：博弈论 第9集 第9集》

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  This is a part of the row.
  这一排就够
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  And suppose my aim in life is to construct the highest average GPA.
  假设我人生的意义就在于找出最高的GPA
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  I'm not going to embarrass these guys and ask them what their GPA's are.
  我就不尴尬地问他们的GPA是多少了
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  www.YYeTs.net
  人人影视
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  So my aim in life here is to pick some sub-group of
  我的目的就是从这八位同学中
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  these one, two, three, four, five, six, seven, eight students,
  随便挑出来一组
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  such that the average GPA of that sub-group is as high as I can make it.
  使得该组的GPA尽可能的高
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  So what will I do here?
  那么我该怎么做呢
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  So this being Yale, I'll just find the people who have the 4.0 GPA's
  因为我们在耶鲁 我只需要选
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  and just pick them. Is that right?
  GPA是4.0的同学就行了 没错吧
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  You might think well why not include somebody who has a 3.9 GPA?
  你们可能会问为什么不选3.9的呢
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  That's pretty good. So why not?
  这个问题问得好 为什么不选呢