I have an assignment in which my professor gave us a program and wants us to change all the arrays with counters as indices to pointers. The purpose of the program is to take sales for each month of the year and output the min, max, average, standard deviation, and graphs of each months sales. I've been able to get everything to work except standard deviation and I'm not sure why that one won't work. If someone could please point me in the right direction as to why standard deviation won't work!