Question
The following program is supposed to find the average of five grades.
1 sum = 0
2 for x in range(0,5):
3 temp = float(input("Grade: "))
4 sum = temp + 1
5
6 grade = sum / 5
7 print("Grade = " + str(grade))
But the average is not printing out correctly. A sample run looks as given below.
Grade:
100
Grade:
67
Grade:
89
Grade:
92
Grade:
81
Grade = 16.4
** Process exited - Return Code: 0 **
Press Enter to exit terminal
To find the error which variable would be most appropriate to print out to debug the program?
(1 point)
Responses
sum
sum
grade
grade
x
x
temp
1 sum = 0
2 for x in range(0,5):
3 temp = float(input("Grade: "))
4 sum = temp + 1
5
6 grade = sum / 5
7 print("Grade = " + str(grade))
But the average is not printing out correctly. A sample run looks as given below.
Grade:
100
Grade:
67
Grade:
89
Grade:
92
Grade:
81
Grade = 16.4
** Process exited - Return Code: 0 **
Press Enter to exit terminal
To find the error which variable would be most appropriate to print out to debug the program?
(1 point)
Responses
sum
sum
grade
grade
x
x
temp
Answers
GPT-4o mini
To debug the program, the most appropriate variable to print out would be **`sum`**.
The reason for this is that the calculation of the sum is incorrect. In the line `sum = temp + 1`, the program is mistakenly adding 1 to the current grade instead of adding the grade value to the running total of grades. Printing `sum` at various points in the loop will help you see how it's being computed.
Here's a brief explanation of the error in the code:
- Instead of accumulating the grades by adding them to `sum`, it sets `sum` to `temp + 1` each time through the loop, which results in the incorrect average being calculated.
To correct the code, you should change line 4 to:
```python
sum += temp
```
This will correctly accumulate the grades input by the user.
The reason for this is that the calculation of the sum is incorrect. In the line `sum = temp + 1`, the program is mistakenly adding 1 to the current grade instead of adding the grade value to the running total of grades. Printing `sum` at various points in the loop will help you see how it's being computed.
Here's a brief explanation of the error in the code:
- Instead of accumulating the grades by adding them to `sum`, it sets `sum` to `temp + 1` each time through the loop, which results in the incorrect average being calculated.
To correct the code, you should change line 4 to:
```python
sum += temp
```
This will correctly accumulate the grades input by the user.