"How is Everybody Doing?" problem


#1

What is wrong here in "How is Everybody Doing?"?

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))
    return total / len(numbers)

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"

def get_class_average(students):
    results = list()
    for student in students:
        results.append(get_average(student))
    return average(results)

students_list=[lloyd, alice, tyler]
gca = get_class_average(students_list)
print gca
print get_letter_grade(gca)

I get error like this: "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" but result in the right window is OK.

thanks in advance


#2

Hi,

maybe try renaming students_list to students.


#3

It gives you a list of names, says they're not what they're supposed to --> have a look at those names.
An easy first step is to check if they're all there

print alice, lloyd, tyler, students, get_class_average, get_letter_grade