图1：平均值为3且方差为1的正态分布。

Figure 1: a normal distribution with mean 3 and variance 1.

youdao

不论你签了多少份保单,均值永远是0.2,所以这就是一个关于x=0.2对称的,正态分布

Well, the mean is always .2 no matter how many policies you write, so it's going to be--we're going to have a normal distribution centered on .2.

youdao

可能是正态分布，也就是高斯分布，只要有平均值和标准偏差值，你就可以进行调用，大部分的值都是集中在平均值附近的。

It could be normal, everything, that would be a Gaussian, where if you recall there was a mean, and a standard deviation, and most values were going to be close to the mean.

youdao