# I cant figure it out

#1

``````type or paste c
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)
aver = total / len(numbers)
return aver

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

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):
results = []
for a in students:
results.append(get_average(students))
return average(results)``````

I cant figure it out, it keep saying:

Oops, try again. get_class_average([alice]) resulted in an error: list indices must be integers, not str

#2

What if we use a variable name that is more descriptive?

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

Recall that `students` is a list of dictionaries. `student` is one of those dictionaries.

#3

i messed up. Thanks.! you solved it!

#4

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