What's wrong with the code


#1

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]
}

Add your function below!

def average (numbers):
total = 0
for i in numbers:
total += i
return float(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"]))
def get_letter_grade(score):
if score >=90:
return "A"
elif score >=80:
return "B"
elif score >=70:
return "C"
elif score >=60:
return "D"
else:
return "F"
print get_letter_grade(get_average(lloyd))
def get_class_average(student):
results=()
for students in student:
results.append(get_average(student))
return average(results)

error:_-------------------------
get_class_average([alice]) resulted in an error: 'tuple' object has no attribute 'append'
and when i take return outside the function it shows
File "python", line 47
SyntaxError: 'return' outside function


#2

should be results = [] to make an empty list (not sure what results = () makes, maybe a tuple?)

mine still doesn't work though. I have:
def get_class_average(students):
results = []
for student in students:
results.append(get_average(student))
return average(results)

for this part, and i get "Oops, try again. get_class_average([alice, lloyd]) returned 91.15 instead of 85.85 as expected"

Update: it was too many indents on return average(results)
I hate indents