I have this function in a separate file to be called in the main program. I know that i have to have a for statement under the first one where i already figured the sum. Please help.

Code://----------------------------------------------------------------------------- // deviation function // //----------------------------------------------------------------------------- #include <cmath> double deviation(double list[], int size) { double total=0; double average; double S; double U; double sum; for(int x = 0; x<size; x++){ total += list[x]; } average = total/size; for( S = (sqrt (U / size)); return S; }