🎯 PROJECT: Student Performance Analysis Using Lists + Matplotlib

 This project uses lists to store student data, calculates performance, and visualizes the result using matplotlib.

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📌 Project Objective

• Store student names and marks using lists

• Calculate total marks, percentage, and grade

• Display a report

• Visualize performance using a bar graph

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📂 Dataset (Using Lists)

names = ["Raghav", "Aman", "Simran", "Khushi", "Arjun"]
math = [78, 90, 65, 88, 72]
science = [82, 88, 70, 91, 75]
english = [75, 92, 68, 85, 80]

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🧠 Complete Working Project Code

# -------------------------------
# Student Performance Analysis
# -------------------------------

# Lists (Dataset)
names = ["Raghav", "Aman", "Simran", "Khushi", "Arjun"]
math = [78, 90, 65, 88, 72]
science = [82, 88, 70, 91, 75]
english = [75, 92, 68, 85, 80]

# Empty lists to store calculated results
total = []
percentage = []
grade = []


# Function to calculate grade
def get_grade(p):
    if p >= 90:
        return "A+"
    elif p >= 75:
        return "A"
    elif p >= 60:
        return "B"
    else:
        return "C"


# Calculate total, percentage, grade
for i in range(len(names)):
    t = math[i] + science[i] + english[i]
    total.append(t)

    p = t / 3
    percentage.append(p)

    grade.append(get_grade(p))


# Display report
print("STUDENT PERFORMANCE REPORT")
print("----------------------------------------")
for i in range(len(names)):
    print(f"{names[i]}  | Total: {total[i]} | %: {percentage[i]:.2f} | Grade: {grade[i]}")


# ------------ Matplotlib Chart --------------
import matplotlib.pyplot as plt

plt.figure(figsize=(10, 6))
plt.bar(names, percentage)        # Bar graph
plt.title("Student Performance Chart")
plt.xlabel("Students")
plt.ylabel("Percentage")
plt.ylim(0, 100)

# Display values on top of bars
for i in range(len(names)):
    plt.text(i, percentage[i] + 1, f"{percentage[i]:.1f}%", ha='center')

plt.show()

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📊 Graph Output

The bar graph will show:

• X-axis → Student names

• Y-axis → Percentage

• Bars → Performance comparison

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📜 Features of This Project

✔ Uses lists as the main data structure
✔ Uses loops + functions
✔ Generates a text report
✔ Visualizes output using matplotlib
✔ Beginner-friendly, perfect for school/college projects