Could someone please help? I am quite confused by the error I am receiving... I am stuck on the "Weight and See" Problem, where the goal is to calculate each students weighted grade through homework, quizzes and tests. I am receiving no error in the comment box (it simply says "None"), but every time I submit, codeacademy pops up with the error: "get_average(alice) raised the following errors: list indices must be integers, not str"

What I am confused by is that it seems to be making it through Lloyd well enough??

My code looks like:

```
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)
ave = total / len(numbers)
return ave
def get_average(student):
homework= average(student["homework"])
homework = homework * 0.1
quizzes = average(student["quizzes"])
quizzes = quizzes *0.3
tests = average(students["tests"])
tests = tests * 0.6
return tests + quizzes + homework
```

Thank you!