Part of the Whole

#1

Oops, try again. get_class_average([alice]) returned 83.8666666667 instead of 91.15 as expected

I don't understand how to get the correct number.

``````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)
total=total/len(numbers)

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

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):
students = [lloyd, alice, tyler]
results = []
for student in students:
get_average(student)
results.append(get_average(student))
return average(results)``````

Any helpful explanation will be appreciated.

#2

Hi @leopard1996,

I can spot the error, which is here:

you shouldn't place this list within your function, but rather outside of the function.

Unfortunately, I don't know why not either...I suspect that this causes the list to become restricted to the `get_class_average` function but yeah.... waits for another coder to appear

#3

Just take out the following line and it will work:
students = [lloyd, alice, tyler] <--- This is not needed

#4

I have to remove this:
students = [lloyd, alice, tyler]

and this:
get_average(student) # you are call it twice. it's first time.