#!/usr/bin/python3
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
import numpy as np
def main():
	#x=np.random.rand(50)
	x=np.random.normal(0,1,1000)
	plt.hist(x,bins=30,edgecolor='black')
	plt.title('histogram Plot')
	plt.xlabel('Value')
	plt.ylabel('Freq')
	plt.savefig('fig3.png',dpi=300,transparent=True)
	
if __name__=="__main__":
	main()