# Issue In Part of Whole

#1

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

Expected: Finally, return the result of calling average() with results.

Code block**strong text**
`python

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):
return float(sum(numbers))/len(numbers)

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

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):
students = [lloyd, alice, tyler]
results = []
for x in students:
results.append(get_average(x))
return average(results)

""
print get_average(lloyd) #80.55
print get_average(alice) #91.15
print get_average(tyler) #79.9

class_average = (get_average(lloyd) + get_average(alice) + get_average(tyler))/3

print class_average #83.87
""

#2

`students = [lloyd, alice, tyler]`

`students` list should be outside of `get_class_average` function.

#3

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