# How is Everyone Doing

#1

Console:

83.8666666667
A
None

Error message:
"Oops, try again. Did you remember to print the letter grade for the class's average?"

I'm missing why an 83.86 got an A.
and I assume that is the entirety of the problem

here's the code. Any thoughts?

``````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]
}
students=[lloyd, alice, tyler]
def average(numbers):
total=sum(numbers)
total=float(total)
def get_average(student):
homework=average(student["homework"])
quizzes=average(student["quizzes"])
tests=average(student["tests"])
return .1*homework+.3*quizzes+.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"
print score
def get_class_average(students):
results=[]
for student in students:
results.append(get_average(student))
return average(results)
print get_class_average(students)

#2

Hi @poitrasm,

The following statement is what displayed the `"A"` grade ...

``print get_letter_grade(get_class_average)``

You passed a reference to the `get_class_average` function to the `get_letter_grade` function rather than passing the result of calling the `get_class_average` function to the `get_letter_grade` function. Therefore, this `if` block header within the `get_letter_grade` function ...

``if score>=90:``

... compared the `get_class_average` function directly to `90.0` instead of comparing a number grade to `90.0`. The result of the comparison was `True`.

A comparison between a number and a non-numerical object will often produce an unwanted result.

The aforementioned `print` statement should be ...

``print get_letter_grade(get_class_average(students))``

#3

Right! Thanks.
I just missed that get_class_average wasnt using a reference.
I must have read it 20 times and never saw that the "()" was missing. Nested functions like that can fatigue the brain.
thanks again

#4