# [SOLVED] 9. How is Everybody Doing - error message

#1

I get this error message:
Oops, try again. One of the following is missing or broken when we tried to use it: alice, lloyd, tyler, students, get_class_average, get_letter_grade

I think the code itself is perfectly fine. The console on the right side of the screen prints results without problem but I can't go on due to the error message.

``````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]}
def average(numbers):
total = sum(numbers)
total = float(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

if score >= 90:
return 'A'
elif 80 <= score < 90:
return 'B'
elif 70 <= score < 80:
return 'C'
elif 60<= score < 70:
return 'D'
else:
return 'F'

def get_class_average(students):

results = []

for student in students:
results.append(get_average(student))

return average(results)

print(get_class_average([lloyd,alice,tyler]))