Alice Returning Wrong Value


#1



Exercise: Student Becomes the Teacher, Part of the Whole.


Error message: Oops, try again. get_class_average([alice]) returned 83.8666666667 instead of 91.15 as expected


I have no idea why it's not calculating the average correctly. I'm pretty sure all the grade values for Alice are correct and the average and get_average functions look right to me.


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]
}

class_list = [lloyd, alice, tyler]

def average(numbers):
    total = sum(numbers)
    total = float(total)
    answer = total / len(numbers)
    return answer
    
def get_average(student):
    homework = average(student['homework']) * 0.1
    quizzes = average(student['quizzes']) * 0.3
    tests = average(student['tests']) * 0.6

    return (homework + quizzes + tests)
    
def get_letter_grade(score):
    if score >= 90:
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"


def get_class_average(students):
    results = []
    for student in class_list:
        results.append(get_average(stude
    return average(results)

Thank you in advance


#2

Hi, @tposside ,

This function header establishes students as a parameter ...

def get_class_average(students):

However, instead of accessing that parameter here, you are accessing the global variable, class_list ...

for student in class_list:

... and as a consequence, the function does not process the argument that is passed to it when it is called.

Isn't part of this statement missing? ...

results.append(get_average(stude

#3

Yes, you're absolutely right, thank you!

Also aparently I can't copy paste correctly either.


#4