Student Becomes the Teacher - Part of the Whole


#1

Hi.

I'm having problems with this code, I have performed following the instructions but is giving error.

My complete 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):
    
    if len (numbers) > 0:
    
        total = float (sum (numbers))
        return total / len (numbers)
    else:
        return 0
    
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"

print get_class_average ( [lloyd, alice, tyler])

def get_class_average (studens):
    
    
    results = []
    for student in students:
        results.append ( get_average (student))
    
    print results
    
    return average (results)

But I'm getting:
Oops, try again. get_class_average([alice]) returned 83.8666666667 instead of 91.15 as expected

The output is:
[80.55, 91.14999999999999, 79.9]
83.8666666667
None


#2

you call the function:

print get_class_average ( [lloyd, alice, tyler])

before you create the function, how does that work?

and here:

def get_class_average (studens):

you misspelled students


#3

Thank you very much for your help


#4