Matplotlib: drawing charts

import matplotlib.pyplot as plt

days = [1, 2, 3, 4, 5]
score = [40, 55, 60, 72, 85]

plt.plot(days, score, marker="o", label="Practice score")
plt.scatter([2, 4], [70, 50], color="red", label="Mock tests")
plt.xlabel("Day")
plt.ylabel("Score")
plt.title("Learning over a week")
plt.legend()
plt.grid(True)
plt.show()
print("Chart drawn")

Chart drawn

import matplotlib.pyplot as plt
import numpy as np

fig, (left, right) = plt.subplots(1, 2, figsize=(9, 3.5))

left.bar(["Maths", "Science", "English"], [78, 85, 90])
left.set_title("Marks by subject")

heights = np.random.default_rng(1).normal(160, 8, 500)
right.hist(heights, bins=20)
right.set_title("Heights of 500 students")

plt.show()
print("Charts drawn")

Charts drawn