Hi guys,

I have a strange problem on How is Everybody Doing step. I have write the related code eventhrough i got the output, it says something missing and i could not figure it out. Could you please take look to the code below and share with me what is missing?

Thank you and have a great day!

```
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]
}
students = ["lloyd","alice","tyler"]
# Add your function below!
def average(numbers):
total = float(sum(numbers))
total = total / len(numbers)
return total
def get_average(alice):
homework = average(alice["homework"])
quizzes = average(alice["quizzes"])
tests = average(alice["tests"])
total = 0.1 * homework + 0.3 * quizzes + 0.6 * tests
return total
def get_letter_grade(score):
if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70:
return "C"
elif score >= 60:
return "D"
else:
return "F"
def get_class_average(students):
results=[]
for key in students:
get = get_average(key)
results.append(get)
return average(results)
print get_letter_grade(get_class_average([lloyd, alice, tyler]))
```