#1

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]}

def average(numbers):
total = sum(numbers)
total = float(total)
results = total / len(numbers)
return results
def get_average(student):
homework = average(student["homework"])
quiz = average(student["quizzes"])
students = average(student["tests"])
final_grade = homework*0.1 + quizzes*0.3 + tests*0.6

Oops, try again. get_average(alice) raised the following error: global name 'quizzes' is not defined

6. Just Weight and See
#2

A typo, perhaps, or just overlooked the differing variable names?

#3

Above, the first three lines assign to variables named `homework`, `quiz`, and `students`. Then the fourth line uses the variables `homework`, `quizzes`, and `tests`.

`quiz != quizzes` and `students != tests`

#4

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