9. How is Everybody Doing?


#1



current output:
83.8666666667
A
None


Oops, try again. Did you remember to print the letter grade for the class's average?


return average score and grade for 3 students


lloyd = {
    "name": "Lloyd",
    "homework": [90.0, 97.0, 75.0, 92.0],
    "quizzes": [88.0, 40.0, 94.0],
    "tests": [75.0, 90.0]
}
alice = {
    "name": "Alice",
    "homework": [100.0, 92.0, 98.0, 100.0],
    "quizzes": [82.0, 83.0, 91.0],
    "tests": [89.0, 97.0]
}
tyler = {
    "name": "Tyler",
    "homework": [0.0, 87.0, 75.0, 22.0],
    "quizzes": [0.0, 75.0, 78.0],
    "tests": [100.0, 100.0]
}

# Add your function below!
def average (numbers):
    total = sum(numbers)
    total = float(total)
    total /= len(numbers)
    return total
    
def get_average(student):
    homework = average(student["homework"]) * 0.10
    quizzes = average(student["quizzes"]) * 0.30
    tests = average(student["tests"]) * 0.60    
    return homework + quizzes + tests
    
def get_letter_grade(score):
    score = int(score)
    if score >= 90: 
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"
    
    print get_letter_grade(get_average(lloyd))

def get_class_average(students):
    results = []
    for student in students:
        results.append(get_average(student))
    return average(results)
    
students = [lloyd ,alice ,tyler]    

print get_class_average([lloyd, alice, tyler])
print get_letter_grade(get_average(lloyd) + get_average(alice) + get_average(tyler))


#2

it is easier to use the get_class_average for get_letter_grade, but you don't have to.

if you want to do it your way, don't forget to take the average of get_average(lloyd) + get_average(alice) + get_average(tyler)


#3

Thanks for the help. Went with your suggestion and it worked. Definitely the easier option.


#4

yea, that is why you wrote the get_class_average function in the first place, otherwise you have to implement what you tried every time you want to call the get_letter_score function for multiply students.


#5

Why can't we just use students in get_class_average?


#6

Pretty sure you can.


#7

You can, in fact, it would be better to use students


#8

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