# 8/9 Int not strings

#1

It returns with:
get_class_average([alice]) resulted in an error: list indices must be integers, not str

``````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)

def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
test = 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 getclassaverage(students):
results = []
for student in students:
results.append(get_average(student))
return average(results)``````

#2

-1
In the function names you should underscore's to separate the words
like

``````get_letter_grade
get_class_average``````

-2
In your `get_average` function
you are collecting the =average='s in the variable's homework, quizzes and test
( you should probably use tests )

You can then use these variables in your `return` statement
like

``return 0.1*homework + 03*quizzes + 0.6*test``