# 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