Question
Driver’s License Exam
The local driver’s license office has asked you to create an application that grades the written portion of the driver’s license exam. The exam has 20 multiple-choice questions. Here are the correct answers:
1. B 6. A 11. B 16. C
2. D 7. B 12. C 17. C
3. A 8. A 13. D 18. B
4. A 9. C 14. A 19. D
5. C 10. D 15. D 20. A
Your program should store these correct answers in a list. The program should read the student’s answers for each of the 20 questions from a text file and store the answers in another list. (Create your own text file to test the application.) After the student’s answers have been read from the file, the program should display a message indicating whether the student passed or failed the exam. (A student must correctly answer 15 of the 20 questions to pass the exam.) It should then display the total number of correctly answered questions, the total number of incorrectly answered questions, and a list showing the question numbers
of the incorrectly answered questions.
Answer
Driver's License Exam Program Code:
def grade_exam():
# Correct answers
correct_answers = ['B', 'D', 'A', 'A', 'C', 'A', 'B', 'A', 'C', 'D', 'B', 'C', 'D', 'A', 'D', 'C', 'C', 'B', 'D', 'A']
# Read student's answers from a text file
try:
with open("student_answers.txt", "r") as file:
student_answers = file.read().splitlines()
except FileNotFoundError:
print("Error: Student answers file not found.")
return
# Check the student's answers and calculate the results
num_correct = 0
num_incorrect = 0
incorrect_questions = []
for i in range(len(correct_answers)):
if student_answers[i].upper() == correct_answers[i]:
num_correct += 1
else:
num_incorrect += 1
incorrect_questions.append(i + 1)
# Display the results
print("Total number of correctly answered questions:", num_correct)
print("Total number of incorrectly answered questions:", num_incorrect)
if num_correct >= 15:
print("Congratulations! You passed the exam.")
else:
print("Sorry, you failed the exam.")
if num_incorrect > 0:
print("Incorrectly answered questions:", incorrect_questions)
# Call the function to grade the exam
grade_exam()
Data in "student_answers.txt" file:
B
D
A
A
C
A
B
A
C
D
B
C
D
A
D
C
B
B
C
A
Executed Output:
Total number of correctly answered questions: 18
Total number of incorrectly answered questions: 2
Congratulations! You passed the exam.
Incorrectly answered questions: [17, 19]