https://www.codecademy.com/courses/python-beginner-en-qzsCL/1/4?curriculum_id=4f89dab3d788890003000096

I am not getting any compilation error only the below error message from codeacademy:

Oops, try again. get_class_average([alice]) should return a number

Output for my code is:

[80.55, 91.14999999999999, 79.9]

```
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)
avg = total/len(numbers)
return avg
def get_average(student):
hw_avg = average(student["homework"])
q_avg = average(student["quizzes"])
t_avg = average(student["tests"])
print hw_avg
print q_avg
print t_avg
weighted_avg = 0.1 * hw_avg + 0.3 * q_avg + 0.6 * t_avg
print weighted_avg
return weighted_avg
def get_letter_grade(score):
if score>=90:
return "A"
elif score>=80 and score<90:
return "B"
elif score>=70 and score<80:
return "C"
elif score>=60 and score<70:
return "D"
else:
return "F"
def get_class_average(students):
results=[]
for student in students:
avg = get_average(student)
results.append(avg)
return results
students = [lloyd, alice, tyler]
print get_class_average(students)
```