a program to test if this works

lloyd = {
    "name": "Lloyd",
    "homework": [90, 97, 75, 92],
    "quizzes": [88, 40, 94],
    "tests": [75, 90]
}
alice = {
    "name": "Alice",
    "homework": [100, 92, 98, 100],
    "quizzes": [82, 83, 91],
    "tests": [89, 97]
}
tyler = {
    "name": "Tyler",
    "homework": [0, 87, 75, 22],
    "quizzes": [0, 75, 78],
    "tests": [100, 100]
}

# Add your function below!
def average(scores):
    total = sum(scores)
    return (total/(len(scores)))
    
def get_average(student):
    return average(student['homework'])*.1 + average(student['quizzes'])*.3 + average(student['tests'])*.6
    
def get_letter_grade(score):
    if score>=90: return 'A'
    if score>=80 and score<90: return 'B'
    if score>=70 and score<80: return 'C'
    if score>=60 and score<70: return 'D'
    if score<60: return 'F'

print get_letter_grade(get_average(lloyd))

def get_class_average(studentlist):
    return average(get_average(studentlist['lloyd']),get_average(studentlist['alice']),get_average(studentlist['tyler']))

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