来自《耶鲁大学开放课程：金融市场 第2集 第2集》

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  then you could look at the correlation.
  那你就可以考察相关性了
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  I want to move to regression.
  下一个部分是回归
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  This is another concept that is very basic to statistics,
  这是统计学中又一个基本概念
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  but it has particular use in finance,
  在金融学中广泛使用
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  so I'll give you a financial example.
  那我就举一个金融领域的例子
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  The concept of regression goes back to the mathematician Gauss,
  回归这个概念要追溯到数学家高斯
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  who talked about fitting a line through a scatter of points.
  讨论的是从若干散点中切合出一条直线
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  Let's draw a line through a scatter of points here.
  我们来画一条切合散点的直线
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  I want to put down on this axis the return on the stock market
  我把这个轴作为股票市场的收益
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  and on this axis I want to put the return on one company,
  这个轴作为某个公司的收益
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  let's say Microsoft.
  比如说微软
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  I'm going to have each observation as a year.
  将每一年的数据作为一个观察值