When I run the code I get this message "Oops, try again. grades_variance seems to be missing!" even though the answer is correct (the 334.07..). Can someone help me figure out why it won't accept it?
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) gaverage = sum_of_grades / float(len(grades)) return gaverage def grades_varience(scores): average = grades_average(scores) varience = 0 for i in scores: varience += (average - i)**2 total_varience = varience/float(len(scores)) return total_varience print grades_varience(grades)