We also need some measure of-- We've been talking here about measures of central tendency only and in finance we need, as well, measures of dispersion, which is how much something varies.

我们也需要其他的指标,目前为止,我们只讨论了集中趋势指标,在金融学中,我们同样需要,离散趋势指标以衡量参数的变化程度

耶鲁公开课 - 金融市场课程节选

Central tendency is a measure of the center of a probability distribution of the-- Central tendency is a measure-- Variance is a measure of how much things change from one observation to another.

集中趋势用以描述,一组概率分布的中心,集中趋势...,而方差衡量的是,各个观察值之间的变化

耶鲁公开课 - 金融市场课程节选

So, that completes central tendency and dispersion.

这样我们就介绍完了集中趋势和离散趋势

耶鲁公开课 - 金融市场课程节选

The thought was that the central bank is guarding the money stock and governments have a tendency to sometimes want to raid the bank when they're in trouble.

观点是,中央银行在保护金融债券,而政府当看到,银行陷入困境时,有查抄这家银行的倾向。

耶鲁公开课 - 金融市场课程节选