We also need some measure of--We've been talking here about measures of centraltendency 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。
2
We also need some measure of — we've been talking here about measures of centraltendency only and in finance we need, as well, measures of dispersion, which is how much something varies.