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21.6 LAB*: Program: Grade calculator
Program Specifications Write a program to calculate a course grade given points for homework, quizzes, midterm exam, and final exam. Grades are calculated differently for undergrads, grads and distance learners.
Note: this program is designed for incremental development. Complete each step and submit for grading before starting the next step. Only a portion of tests pass after each step but confirm progress.
Step 1 (2 pts). Read from input student status (str). If input is not one of "UG" (undergrad), "G" (grad), or "DL" (distance learner), print an error message and exit the program. Otherwise read from input floats for homework points, quiz points, midterm exam score, and final exam score. Calculate each category's average using maximum points for homework (800), quizzes (400), midterm exam (150), and final exam (200). Output category averages as a percentage using print(f"Homework: {homework:2.1f}%"). Submit for grading to confirm two tests pass.
Ex: If the input is:
The output is:
Homework: 75.0% Quizzes: 75.0% Midterm: 80.0% Final Exam: 92.5%Ex: If the input is:
TL 600 300 120 180The output is:
Error: student status must be UG, G or DL
Step 2 (2 pts). Set any average to 100% if average is above 100%. Submit for grading to confirm three tests pass.
Ex: If the input is:
The output is:
Homework: 87.5% Quizzes: 75.0% Midterm: 100.0% Final Exam: 100.0%
Step 3 (2 pts). Calculate the course average based on student status using the table below. Output the course average. Submit for grading to confirm five tests pass.
| Category | UG | G | DL |
|---|---|---|---|
| Homework | 20% | 15% | 5% |
| Quizzes | 20% | 5% | 5% |
| Midterm | 30% | 35% | 40% |
| Final Exam | 30% | 45% | 50% |
Ex: If the input is:
The output is:
Homework: 100.0% Quizzes: 100.0% Midterm: 66.7% Final Exam: 50.0% G average: 65.8%
Step 4 (4 pts). Identify the course letter grade based on the course average using the table below. Output the course letter grade. Submit for grading to confirm all tests pass.
| Average | Grade |
|---|---|
| at least 90.0 | A |
| at least 80.0 and less than 90.0 | B |
| at least 70.0 and less than 80.0 | C |
| at least 60.0 and less than 70.0 | D |
| less than 60.0 | F |
Ex: If the input is:
The output is:
Homework: 75.0% Quizzes: 75.0% Midterm: 80.0% Final Exam: 75.0% DL average: 77.0% Course grade: C
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