python 卡方检验
from scipy.stats import chisquare # 卡方检验包
import numpy as np
observed = np.array([120,80]) # 观测值：200 人中吃香菜的男生120，女生80
expected = np.array([100,100]) # 理论值：200 人中吃香菜的男生100，女生100
res = chisquare(observed,expected)
print(res)
output:
Power_divergenceResult(statistic=8.0, pvalue=0.004677734981047276)