How is Everybody Doing?


#1



Oops, try again. One of the following is missing or broken when we tried to use it: alice, lloyd, tyler, students, get_class_average, get_letter_grade


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 = sum(numbers)
    total = float(total)
    a = total / len(numbers)
    return a
def get_average(student):
    homework = average(student['homework'])
    quizzes = average(student['quizzes'])
    tests = average(student['tests'])
    return homework * 0.1 + quizzes * 0.3 + 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'
def get_class_average(students):
    results=[]
    for student in students: 
        a = get_average(student)
        results.append(a)
    return average(results)
students = [lloyd, alice, tyler]
average = get_class_average(students)
print average
print get_letter_grade(average)


Part of the whole error, student becomes the teacher
#2

i found the problem, it is here:

average = get_class_average(students)

let me explain why, because you create a variable called average, your average function:

def average(numbers):

is now overwritten.

you can store the result of calling get_class_average in many variables, but average isn't an available name.


#3

thanks, problem solved


#4