#include "stdafx.h" //No Flipping Clue
#include <iostream> //Needed For "cout"
#include <iomanip> //Needed To Round Decimal Points
#include <math.h> //Needed For "sqrt()" And "pow()"

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
//Used To Round The Decimal Points 2 Places
cout << setiosflags(ios::fixed|ios::showpoint);
cout << setprecision(1);

//Declaring
double Numbers[] = {65, 49, 74, 59, 48}; //Work On Making This A User Input
double Mean = 0, Items = 0, Sum = 0, Deviation = 0;
int Counter;

//Finds The Mean Of The Set Of Numbers
for (Counter = 0; Counter < (sizeof(Numbers) / sizeof(double)); Counter++)
{
    for (Counter = 0; Counter < sizeof(Numbers) / sizeof(double); Counter++)
    {
        Sum += Numbers[Counter]; //Adds All Numbers In Array Together
    }
    Items = sizeof(Numbers) / sizeof(double); //Gets The Number Of Items In The Array
    Mean = Sum / Items; //Finds The Mean
}

//Finds The Standard Deviation
for (Counter = 0; Counter < sizeof(Numbers) / sizeof(double); Counter++)
{
    Deviation += pow((Numbers[Counter] - Mean), 2) / Items; //Does Math Things...
}
Deviation = sqrt(Deviation); //Square Roots The Final Product
cout << "Deviation = " << Deviation << endl; //Print Out The Standard Deviation

system("pause");
return 0;
}