Review


#1



https://www.codecademy.com/courses/python-intermediate-en-7mgOa/2/3?curriculum_id=4f89dab3d788890003000096#


Traceback (most recent call last):
File "python", line 36, in
NameError: name 'print_sum' is not defined


grades = [100, 100, 90, 40, 80, 100, 85, 70, 90, 65, 90, 85, 50.5]

def print_grades(grades):
    for grade in grades:
        print grade

def grades_sum(grades):
    total = 0
    for grade in grades: 
        total += grade
    return total
    
def grades_average(grades):
    sum_of_grades = grades_sum(grades)
    average = sum_of_grades / float(len(grades))
    return average

def grades_variance(scores):
    average=grades_average(scores)
    variance=0
    
def grades_variance(scores):
    variance = 0
    average = grades_average(scores)
    for score in scores:
        variance += (average - score) ** 2
    return variance/float(len(scores))
  
print grades_variance(grades)
def grades_std_deviation(variance):
    return variance ** 0.5
variance = grades_variance(grades)
print grades_std_deviation(variance)
print grades
print_grades(grades)
print_sum(grades)


Thanks in advance


#2

What's your question?
The error-message states that print_sum is not defined, and if you take a look at your code, you will realize that it's true :grinning:


#3

Thanks it works now after i have tries for a while :slight_smile:


#4

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