Problem with the results in students marks averaging by using dictionary...i got the result 83.8666666667

but the server says "Oops, try again. get_class_average([alice]) returned 85.6875 instead of 91.15 as expected "

```
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)
result=float(total)/len(numbers)
return result
def get_average(student):
homework=average(student["homework"])
quizzes=average(student["quizzes"])
tests=average(student["tests"])
return homework*0.1 + quizzes*0.3 + tests*0.6
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):
for stu in students:
results.append(get_average(stu))
return average(results)
results = []
students= [lloyd,alice,tyler]
print get_class_average(students)
```