can someone say me what is wrong with my code? I can't fint out what is wrong with it?
Error : Oops, try again. It looks like not all grades were printed! Make sure you are printing ech one on their own line.
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 return variance / len(scores) def grades_std_deviation(variance): return variance**0.5 variance = grades_variance(grades) grades_std_deviation(variance) print grades print grades_sum(grades) print grades_average(grades) print grades_variance(grades) print grades_std_deviation(variance)