Oops, try again. Did you remember to print the average of the class? It looks like "83.8666666667" wasn't printed.

Finally, print out the result of calling get_class_average with your students list. Your students should be [lloyd, alice, tyler].

Then, print the result of get_letter_grade for the class's average.

```
Replace this line with your code.
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
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
return 0.1 * float(homework) + 0.3 * float(quizzes) + 0.6 * float(tests)
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"
return get_letter_grade(get_average(tyler))
print get_letter_grade(tyler)
def get_class_average(students):
results = []
for student in students:
results.append(get_average(student))
print results
return average(results)
students = [lloyd ,alice ,tyler]
print get_class_average([lloyd, alice, tyler])
print get_letter_grade(get_average(lloyd) + get_average(alice) + get_average(tyler))
```