HI everyone,

I have a numertical problem as my function returns 91.15 where 81.85 is expected. I had no problems with the outcomes prior to this point so i am pritty sure the numbers are correct. So, where am I wrong and why?

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):

total=float(sum(numbers))

return total/len(numbers)

def get_average(name):

return average(name["homework"])*0.1+average(name["quizzes"])*0.3+average(name["tests"])*0.6

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"

print get_letter_grade(get_average(lloyd))

students=[lloyd,alice,tyler]

def get_class_average(students):

results=[]

for student in students:

results.append(get_average(student))

return average(results)