Part of the whole


#1

I keep getting this error message: Oops, try again. get_class_average([alice]) returned 83.8666666667 instead of 91.15 as expected.

My code looks like this:

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!
class_list = [lloyd, alice, tyler]


def average(numbers):
    total = sum(numbers)
    total = float(total)
    return total / len(numbers)
    
def get_average(student):
    homework = average(student["homework"])
    quizzes = average(student['quizzes'])
    tests = average(student['tests'])
    weighted_average = (homework*0.1) + (quizzes*0.3) + \
    (tests*0.6)
    return weighted_average
    
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 class_list:
        results.append(get_average(student))
    return average(results)

Any help would be appreciated... Been stuck for a while now....


#2

you should loop over students, so you can calculate a class average for one student, two students (any combi) or all three students


#3

Thanks for the quick reply, but I don't understand...


#4

here:

def get_class_average(students):

students contains a list, so you should loop over students. This way, you can call your function with one, two or three students


#6

A post was split to a new topic: Part of a whole


#7

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.