Part of the whole


#1

 = {
    "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]
}
students = [lloyd, alice, tyler]
results=[]
# Add your function below!
def average(numbers):
    sum(numbers)
    total=sum(numbers)
    return float(total)/len(numbers)
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'    
def get_average(students):
    homework=average(student['homework'])
    quizzes=average(student['quizzes'])
    tests=average(student['tests'])
    return  0.1*homework+0.3*quizzes+0.6*tests
print get_letter_grade(get_average([lloyd]) 
def get_class_average(students):
    for student in students:
        results.append(get_average(student))
    return average(results)
get_class_average(students) 
get_class_average([lloyd])
get_class_average([lloyd,alice])

#2

line1:

 = {

my assumption? copy paste mistake, lloyd is missing

the actual problem is in this line:

print get_letter_grade(get_average([lloyd])

take a close look at the parentheses


#3

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