I keep getting the error message:

get_average(alice) raised the following error: unsupported operand type(s) for /: 'float' and 'list'

```
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 = sum(numbers)
total = float(total)
len(total / numbers)
return total
def get_average(student):
homework = (average(student["homework"]) * 0.10)
quizzes = (average(student["quizzes"]) * 0.30)
tests = (average(student["tests"]) * 0.60)
return homework + quizzes + tests
```