Can't figure out why it won't print/ 9 review


#1




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

def grades_std_deviation(variance):
    return variance ** 0.5
    variance = grades_variance(grades)
    print grades_std_deviation(variance)
        
print print_grades(grades)
print grades_sum(grades)
print grades_average(grades)
print grades_variance(grades)
print grades_std_deviation(variance)


#2

Print this outside of the function block (remove indentation).


#3

Thanks a lot!!! I kept missing that.


#4

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