# Part of the Whole

#1

``````When I send this code it returns. Oops, try again. get_class_average([alice]) resulted in an error: global name 'result' is not defined.
What did I do wrong?

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)
return float(total) / len(numbers)

def get_average(student):
homework = average(student["homework"]) * 0.1
quizzes = average(student["quizzes"]) * 0.3
tests = average(student["tests"]) * 0.6
avg = homework + quizzes + tests
return avg

score > 0
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 student in students:
result.append(get_average(student))
return average(results)``````

#2

You initialized `results`, then used `result`.

Use one or the other.

#3

thanks man, I didnĀ“t notice that.
Now it runs correctly

#4

it says student not defined i have typed the same code that was given above could you please help me out

#5