#include <iostream>
#include <cmath>
 
using namespace std;
 
int main()
{
	cout << "This program computes the average of a set of test scores."<<endl;
	cout << "How many test scores would you like to average? ";
	int numValues;
	cin >> numValues;
	for (int count = 1; count <= numValues; count++)
	{
		cout << "\nEnter the test score: ";
		int n;
		cin >> n;
	}
}

#include <iostream>
#include <string>
using namespace std;
 
string grade(double sum, int num);
void average (int num)
{
       double sum =0;
       double score;
for (int count = 1; count <= num; count++)
 
{
 
cout <<"\nEnter the test score: ";
 
cin >>score;
sum =sum +score;
}
cout <<"The average is " <<sum/num<<endl;
}
 
 
 
int main()
{
 
cout <<"This program computes the average of a set of test scores."<<endl;
cout <<"How many test scores would you like to average? ";
int numValues;
cin >> numValues;
 
average (numValues);
 
 
}
string grade(double sum, int num)
{
	if (sum/num >= 50)
		return "This student has passed!";
	else if (sum/num < 50)
		return "This student has failed.";
}

int average(int n)
{
   ...
   ... <snip>
   return sum/num;
}