Python 3 only

Problem 1. (Basic Stats) Write a program stats.py that writes the mean , variance V ar, and standard deviation of the oats x1,x2,...,xn supplied as command-line arguments, computed using the formulae:

= x1 + x2 ++ xn n, V ar =(x1 )2 + (x2 )2 ++ (xn )2 n, and = V ar.

$ python3 stats.py 77 41 3 76 19 48 92 10 26 63 45.5 856.65 29.268583840015218