• 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

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