Exercise: Create Smiley Face

Not the prettiest smiley face, but the question is: Can you reproduce it? Use the sizes list to do so.
Hint: The alpha argument makes the markers transparent, allowing us to see the overlapping markers in the final plot.

Expected:

Output:

import matplotlib.pyplot as plt
import numpy as np
 
x = [3.5,5.5,2.8,3.1,3.6,4,4.5,5,5.4,5.9,6.2,4.5]
y = [5.2,5.2,3,2.5,1.9,1.5,1.4,1.5,1.9,2.5,3,4]
sizes = [850,850,50,50,50,50,50,50,50,50,50,50000]
 
############## add code here ###############

plt.scatter(x, y, alpha = 0.5)

############################################
 
plt.title('Smiley')
plt.xticks(np.arange(1,9))
plt.yticks(np.arange(9))
plt.show()

Python

Setting up Python environment...

Output