81 10个高斯分布的坐标点

random模块中的gauss(u,sigma)生成均值为u, 标准差为sigma的满足高斯分布的值，如下生成10个二维坐标点，样本误差(y-2*x-1)满足均值为0，标准差为1的高斯分布：

from random import gauss
x = range(10)
y = [2*xi+1+gauss(0,1) for xi in x]
points = list(zip(x,y))
### 10个二维点：
[(0, -0.86789025305992),
 (1, 4.738439437453464),
 (2, 5.190278040856102),
 (3, 8.05270893133576),
 (4, 9.979481700775292),
 (5, 11.960781766216384),
 (6, 13.025427054303737),
 (7, 14.02384035204836),
 (8, 15.33755823101161),
 (9, 17.565074449028497)]