Question

Write an IPO diagram and Python program that has two functions, main and determine_grade.

main – Should accept input of five numeric grades from the user USING A LOOP.   It should then calculate the average numeric grade.    The numeric average should be passed to the determine_grade function.

determine_grade – should display the letter grade to the user based on the numeric average:

       Greater than 90: A

80-89:                 B

70-79:                 C

60-69:              D

Below 60:           F

Modularity: Your program should contain 2 functions:   a main function to accept input from the user and calculate average and a second function to display the letter grade.

Input Validation: The test scores entered by the user should be in the range 1-100

Output:   Display both the numeric average (rounded to two decimals) and the letter grade

Sample Dialog:  

Enter score #1 in range 1-100: 900

Error: Re-enter score #1 in range 1-100: 90

Enter score #2 in range 1-100: 65

Enter score #3 in range 1-100: 98

Enter score #4 in range 1-100: 33

Enter score #5 in range 1-100: 75

Your average is: 72.20 which is a(n) C

Answer 1

Python Code:-

def determine_grade(n): #Function
  if(n>=90):
    print("Your average is %.2f which is an A" %n)
  elif(n>=80):
    print("Your average is %.2f which is a B"  %n)
  elif(n>=70):
    print("Your average is %.2f which is a C" %n)
  elif(n>=60):
    print("Your average is %.2f which is a D" %n)
  else:
    print("Your average is %.2f which is a F" %n)



if __name__ == "__main__": #Main function
  total=0
  avg=0
  for i in range(5):
    x=int(input("Enter score #%d in range 1-100: " %(i+1)))
    while True:
      if(x>=1 and x<=100): #Validation
        total=total+x
        break
      else:
        x=int(input("Re-Enter score #%d in range 1-100: " %(i+1)))
  avg=total/5
  determine_grade(avg) #Passing average grade to the function determine grade

I am attaching the Screenshot of the code snippet with output as well below:-

Input-process-output(IPO) diagram:-