Chp 6 Ex 7 | Python Fiddle

# Test Average and Grade
# This function has the user enter five test scores and then displays the letter grade for each score
# and the average test score
# Written by Beth Mela
# Last Updated April 28, 2015

# Define constants
numberOfTests=5
totalOfTestScores=0

# Define the determineGrade function
def determineGrade(grade):
	if (grade >= 90):
		return "A"
	elif (grade >= 80):
		return "B"
	elif (grade >= 70):
		return "C"
	elif (grade >= 60):
		return "D"
	else:
		return "F"

# Define the calcAverage function
def calcAverage(totalOfTestScores):
    myFunctionsReturnValue=(totalOfTestScores / numberOfTests)
    return myFunctionsReturnValue
    
# Assign grades to the tests
for test in range(1,numberOfTests+1):
    grade= input('Please enter the test score for test number {}.'.format(test))
    totalOfTestScores = totalOfTestScores + grade
    print('The letter grade for a score of {} is a(n) {}.'.format(grade,determineGrade(grade)))

# Determine the average grade of all tests
averageGrade= calcAverage(totalOfTestScores);

# Print results
print('The overall average score is: {:,.1f}.'.format(averageGrade))
print('The overall average letter grade is a(n) {}.'.format(determineGrade(averageGrade)))

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