1. For the following set of sample data, compute the standard deviation and the mean. (-6,-12, 8, 13, 11, 6, 7, 2,-6,-9,-10, 11, 10, 9, 2) Mean, X 2-1 Standard deviation-kn-1 Standard deviation= |( (4-8)? (x -X)2 2. Ten numbers are entered from the keyboard into an array. Write a C program to find out how many of them are odd and how many are even