Error in "How is Everybody Doing?" exercise


#1



"How is Everybody Doing?"


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


Can not figure where is the error...


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))
    total = total / len(numbers)
    return total
    
def get_average (student):
    homework  = average(student["homework"]) 
    quizzes = average(student["quizzes"]) 
    tests = average(student["tests"]) 
    return ((homework * 10 /100) + (quizzes *30 /100) + (tests * 60/100))

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"
    return "F"
    
    print get_letter_grade (get_average(lloyd))
    
def get_class_average (students):
    results=[]
    for x in students:
        res = get_average(x)
        results.append(res)
        
    return average(results)
    

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


#2

did you check similair topics:


it contains the solution to your problem


#3

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