```
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 = float(sum(numbers))
result = total / len(numbers)
def get_average(student):
h = average(student["homework"])
q = average(student["quizzes"])
t = average(student["tests"])
return 0.1 * h + 0.3 * q + 0.6 * t
```

Hello

This is my code

I got a error

Oops, try again. get_average(alice) raised the following error: unsupported operand type(s) for *: 'float' and 'NoneType'

Please help me not able to figure out what's the error is and proceed to next level.