Power Plant Data. The data file power1.dat contains a power plant output in mega watts ove...

Power Plant Data. The data file power1.dat contains a power plant output in mega watts over a period of 8 weeks. Each row of data contains 7 integers that represent 1 week’s data. In developing the following programs, use symbolic constants NROWS and NCOLS to represent the number of rows and the number of columns in the array used to store the data. (Generate a file to test these problems.)

Write a function to compute the average of a specified column of a two-dimensional array that has NROWS rows and NCOLS columns. The parameters should be the integer array and the desired column. Assume that the corresponding function prototype is

double col_ave(int x[NROWS,NCOLS],int col);