Part of the Whole


#1


im getting this error: get_class_average([alice]) resulted in an error: list indices must be integers, not dict


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'])
    
    homework *= 0.1
    quizzes  *= 0.3
    tests    *= 0.6
    return homework + quizzes + 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'
        
    
get_letter_grade(get_average(lloyd))

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


#2

student will contain each student, look:

def get_class_average(students):
    results = []
    for student in students:
        print student

so you can just get the average for student, no need to access the students list by index


#3

I already had this resolved but somehow the platform got me back to this. And I can't make it work anymore. Any help? The error is: Oops, try again. get_class_average([alice]) should return a number


#4

Never matter. I solved it in the end.


#5

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