I have tried everything, but the error message is still the same, i.e my code returns 91.15 as the result rather than 85.85 for get_class_average(“alice”,“lloyd”). I really can’t figure out where the problem is, please help me.

```
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 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"
get_letter_grade(lloyd)
def average(numbers):
total=0
total= float(sum(numbers))/len(numbers)
return total
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
return 0.1 * homework + 0.3 * quizzes +0.6 * tests
def get_class_average(class_list):
results=[]
for student in class_list:
results.append(get_average(student))
return average(results)
```