import matplotlib.pyplot as plt

precio = [2.50, 1.23, 4.02, 3.25, 5.00, 4.40]
ventas_por_dia = [34, 62, 49, 22, 13, 19]

plt.scatter(precio, ventas_por_dia)
plt.savefig("Graf.pdf")
plt.savefig("Graf.png")
plt.show()