กราฟกระจาย

import matplotlib.pyplot as plt
import numpy as np

rng = np.random.default_rng(1)
hours = rng.uniform(0, 10, 60)
score = 40 + 5 * hours + rng.normal(0, 6, 60)

fig, ax = plt.subplots(figsize=(7, 4))
points = ax.scatter(hours, score, c=score, cmap="viridis", s=50, alpha=0.8)
fig.colorbar(points, label="Score")
ax.set_xlabel("Hours studied")
ax.set_ylabel("Exam score")
ax.set_title("Study time and scores")
plt.show()