# 8. Part of the Whole

#1

Help pls. I don't understand where i 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):
sum(numbers)
total = float(sum(numbers))
a = total / len(numbers)
return a
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
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 = []
results.append(get_average(students))
return average(results)

Oops, try again.
get_class_average([alice]) resulted in an error: list indices must be integers, not str

#2

You forget the loop!

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

#3

Getting the following error: what i m doing wrong?

get_class_average([alice]) resulted in an error: global name 'student' is not defined

#4

great help ,thanks for that

#5