# 8. Part of the Whole

#1

error message I get is get_class_average([lloyd]) returned 85.85 instead of 80.55 as expected

I've tried most of the suggestions that I have seen, but none of them seem to work

``````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]
}
students = [lloyd, alice, tyler]
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"])
get_average = (0.10 * homework) + (0.30 * quizzes) + (0.60 * tests)
return get_average

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

results = []

def get_class_average(students):
for student in students:
results.append(get_average(student))
return average(results)

#2

Instead of creating a variable and returning it, why not just return the sum like this:

``````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)``````

#3

Thanks for your fast response, but I am still getting the error message get_class_average([lloyd]) returned 85.85 instead of 80.55 as expected

#5

You need to move the results list into the function get_class_average

#6

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