我们也需要一些测量--我们一直在这里谈论我们金融学中所需的集中趋势的测量，同样，也有分散的测量。
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.
我们也需要一些测量--我们一直在这里谈论我们金融学中所需的集中趋势的测量，同样，也有分散的测量。
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.
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