统计学基础4-卡方分布与方差分析

卡方分布

• 定义
  
• 概率密度函数
  

卡方检验

python代码

import numpy as np
from scipy.stats import chisquare

c1 = np.array([[0.1, 1.1], [6.8, 7.1], [-3.5, -4.1], [2.0, 2.7], [4.1, 2.8],
               [3.1, 5.0], [-0.8, -1.3], [0.9, 1.2], [5.0, 6.4], [3.9, 4.0]])

k = chisquare(c1)
print(k)

参考文献

https://www.deeplearn.me/1446.html
https://blog.csdn.net/jinxiaonian11/article/details/78617936
https://en.wikipedia.org/wiki/Chi-squared_distribution