# Why is Alice's average 83... when it should be 91.15

#1

Oops, try again. get_class_average([alice]) returned 83.8666666667 instead of 91.15 as expected

It should be 91.15

``````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]
}
classlist = [lloyd, alice, tyler]
def average(numbers):
total = sum(numbers)
total = float(total)
total = total/len(numbers)
return total
# Add your function below!
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)

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'
for student in classlist:
print student['name']
print get_letter_grade(student)
print get_average(student)

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

#2

Hi @lharnett ,

There are a couple of things you should check.

Review what you were asked to do in Exercise 3: Put It Together. Are the names of variables in your code still consistent with what was done in that exercise?

You have this function header ...

``def get_class_average(students):``

Does this loop header use the information that is passed to the function via its parameter, or does it access a global variable instead? ...

``for student in classlist:``

#3

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.