Unsupported operand


#1

```
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]
}
def average(numbers):
    total=sum(numbers)
    total=float(total)
    return total/len(numbers)
# Add your function below!
def get_average(student):
    homework=average(student['homework'])
    quizzes=average(student['quizzes'])
    tests=average(student['tests'])
    return .1*homework+.3*quizzes+.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'
print get_letter_grade(get_average(lloyd))
def get_class_average(students):
    result=[]
    for student in students:
        result.append(get_average(student))
    return average(students)
    
 get_class_average([alice])

resulted in an error: unsupported operand type(s) for +: 'int' and 'dict'


It's ok to be average
#2

Does that look right to you?


#3

Thank you,I basically saw others answers and strayed.It must be : return average(results)


#4

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