import matplotlib.pyplot as plt
import numpy as np

# X and Y must be of same length
X1=[1,2,3,4,5,6,7,8,9,10]
Y1=[11,7,8,12,33,12,6,4,39,32]

X2=np.random.randn(100)
Y2=np.random.randn(100)
plt.scatter(X1,Y1)
plt.scatter(X2,Y2)
plt.show()
