Hey all! Unfortunately, I am stuck here at this little bit... I think that I have everything right but I'm unsure where I'm making a mistake.

This is the error message that I always end up getting:

**Oops, try again. get_average(alice) raised the following error: list indices must be integers, not str**

And here's my code:

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