Binomial distribution

伯努力分配 

reference from https://www.itread01.com/content/1544006644.html

from scipy.stats import binom
import matplotlib.pyplot as plt
import numpy as np
n=10
p=0.3
k=np.arange(0,21)
binomial=binom.pmf(k,n,p)
plt.plot(k,binomial)
plt.show()