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]

}

class_list=[lloyd,alice,tyler]

# Add your function below!

def average(numbers):

total = 0

total = sum(numbers)

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

return total

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"

get_letter_grade(get_average(lloyd))

def get_class_average(students):

results=[]

for x in students:

results.append(get_average(x))

return results