Part of the Whole


#1



https://www.codecademy.com/en/courses/python-beginner-en-qzsCL/1/4?curriculum_id=4f89dab3d788890003000096


im stuck here and i don't know where is my fault


Replace this line with your code. 
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]
}

# Add your function below!
def average(numbers) :
    total = float(sum(numbers))
    length = len(numbers)
    return total / length
def get_average(student):
    homework = average(student["homework"])
    quizzes= average(student["quizzes"])
    tests = average(student["tests"])
    print 0.1 * average(student["homework"]) +  0.3 * average(student["quizzes"]) + 0.6 * average(student["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"
print get_letter_grade(tyler)

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


#2

result.append is wrong
its results.append


#3

steal wrong.................