So it's the area from minus infinity to x of our probability density function, dx.

所以它是从负无穷大到我们的概率密度函数 dx 的 x 的区域。

Because in an integral, you're summing up a bunch of things and you're multiplying them times dx, which is a really small interval.

因为在积分中，您要对一堆东西求和， 然后将它们乘以 dx， 这是一个非常小的间隔。

Yesterday Alexada authorities intercepted the explosive devices flat dx defuse it are piles among those controversial figures in long enforcement for its get touch stands in Manson undocumented emigrants.

昨天亚历山大当局经过长期接触在非法移民所处的大厦中从那些有争议的人物截获了爆炸装置。

The probability of this happening would be equal to the integral, for those of you who've studied calculus, from 1.9 to 2.1 of f of x dx.

这种情况发生的概率等于积分， 对于学过微积分的人来说，从 1. 9 到 2. 1 的 f 是 x dx。

So if we took the integral of f of x from 0 to infinity, this thing, at least as I've drawn it, dx should be equal to 1.

所以如果我们把 x 的 f 从 0 积分到无穷大，这个东西，至少我画的， dx 应该等于 1。