```
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)
total = total / len(numbers)
return total
students = [lloyd, alice, tyler]
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
homework = .1 * homework
quizzes = .3 * quizzes
tests = .6 * tests
return (homework + quizzes + tests)
def get_letter_grade(score):
score = float(score)
if score >= 90:
return 'A'
elif score >= 80:
return 'B'
elif score >= 70:
return 'C'
elif score >= 60:
return 'D'
else:
return 'F'
print get_letter_grade(get_average(lloyd))
def get_class_average(students):
results = []
for student in students:
get_average(student)
results.append(get_average(student))
return average(results)
```

When I submit the above code, I am told: Oops, try again.

get_class_average([alice, lloyd]) returned 91.15 instead of 85.85 as expected

I am a novice. Therefore, this confuses me.

Thank you for your help