import numpy as np
import matplotlib.pyplot as plt
 
# Generate a random normal distribution of grades
np.random.seed(42)
grades = np.random.normal(loc=75, scale=10, size=30)  # Mean of 75, std deviation of 10, 30 students
 
# Plotting the histogram
plt.figure(figsize=(8, 6))
plt.hist(grades, bins=10, edgecolor='black', color='skyblue', alpha=0.7)
plt.title('Class Grade Distribution', fontsize=14)
plt.xlabel('Grades', fontsize=12)
plt.ylabel('Frequency', fontsize=12)
plt.grid(True)
plt.show()
 

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