7/9 error in printing variance


#1


https://www.codecademy.com/courses/python-intermediate-en-7mgOa/2/1?curriculum_id=4f89dab3d788890003000096

its giving an error that correct variance is not being printed.


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
    for score in scores:
        square_diff = (average - score) ** 2
        variance += square_diff
    total_variance = variance / len(scores)
    return total_variance
    print grades_variance(grades)


#2

Hi you should not indent the last print statement

..............
    total_variance = variance / len(scores)
    return total_variance
print grades_variance(grades)

#3

yeah i figured that out.
thanks alot