# Something weird with lesson 9

#1

I just completed the course and I'm going through everything a second time, taking notes and whatnot. I've just come across something peculiar though. This program seems to work properly, but when I submit the function, it pops up with the grad 'B' for Lloyd's average, the percentage 83.8666666667 for the class average, but then rather than returning a 'B' for the class average, it returns an 'A'. Am I reading something incorrectly? I don't see why it would be doing this.

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

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

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

students=(lloyd, alice, tyler)

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

print get_class_average(students)

#2

Edited:
Your function ( get_class_average ) needs to be invoked with `()` with required arguments .

for example..

``````def someCoolFunction(w):
return 2 * w``````

To use this function..

we need to call it/invoke it (to use our function)..

`print someCoolFunction(2) #prints 4`

#3

Took me a moment to figure out what you meant, but I understand now and have got it working properly! Thank you very much!

#4

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