Set of data = (6.3, 4.2, 9.3, 6.7, 7.8, 2.4, 3.8, 9.7)

Write an efficient routine that accepts as input a list of real numbers a1, 22, ..., an and then computes the following: Arithmetic mean Arithmetic mean m= m = k= 1 Variance v=- (ak m) n - 1 k= 1 Standard deviation 0 = 0 Test the routine on a set of data of your choice