And if we go ahead and square that, then what we get is a probability density, and specifically it's the probability of finding an electron in a certain small defined volume away from the nucleus.

我们得到的是，一个概率密度，它是，在核子周围，某个很小的,特定区域,找到电子的概率,所以它是概率密度。

麻省理工公开课 - 化学原理课程节选

So, the probability that the whole city burns down is infinitesimally small, right?

在这样的假设下,整个城市都被烧掉的概率,是非常非常小的

耶鲁公开课 - 金融市场课程节选