It shows that I bit off from the code. I am trying figure out what mistake i made
Traceback (most recent call last):
File "python", line 38, in
File "python", line 30, in grades_std_deviation
TypeError: unsupported operand type(s) for ** or pow(): 'list' and 'float'
Oops, try again. Your code looks a bit off. Feel free to peek back at earlier exercises if you need a refresher! Take a look at the console window for the error message from the interpreter.
I expect to output tall grades, sum of grades, average of grades, variance, standard deviation
print print_grades(grades) print grades_sum(grades) print grades_average(grades) print grades_variance(grades) print grades_std_deviation(grades)