Oops, try again. get_average(alice) raised the following error: 'float' object is not iterable. I am wondering what exactly is going on in my code at the moment and why this error would be occurring. It is automatically iterating through all of the dictionaries? Even though I have not passed in an argument? Not sure what iteration is going on.

```
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]
}
# Add your function below!
def average(numbers):
total = 0
total += sum(numbers)
total = float(total)
mean = total / len(numbers)
return mean
def get_average(student):
homework = average(student['homework']) * .10
quizzes = average(student['quizzes']) * .30
tests = average(student['tests']) * .60
grade = sum(homework + quizzes + tests)
return grade
```