Need some assistance with mean, mean, and mode

[kris84]

So...basically I have an application that collects numbers and when the user presses enter the application stops collecting numbers and shows the mean, median, and mode of the numbers entered.

Here is my code thus far:

#include <iostream>
#include <string>
#include <vector>

using namespace std;

void GetNums(vector<int>&values)
{
	int i= -1;
	string temp;

	do
	{
		i++;
		values.resize(i+1);
		cout << "Please enter a number <ENTER to quit>:   ";
		getline(cin, temp);
		values[i] = atoi (temp.c_str());
	} while (temp != "");
}

void ShowNums(vector <int> values)
{
	
//Need to add a mean, median, & mode

}

void Swap (int & first, int & second)
{
	int temp = first;
	first = second;
	second =  temp;
}

void SortNums (vector<int>values)
{

	for (int i=0; i<values.size(); i++)
      for (int j=0; j<values.size(); j++)
		  if (values[j] < values[j+1])
		  Swap(values[j], values[j+1]);
}

void main()
{
	vector <int> values;

	GetNums(values);
	cout << endl;

	SortNums(values); 
	cout << endl;

	ShowNums(values);
	cout << endl;
}

I'm not that familiar with vectors so my question is, what is the best way to go about making the mean, median, and mode? Thanks for those that help!

[Mathhead200]

http://cplusplus.com/reference/stl/vector/
Vectors are like arrays that can increase and decrease in length.