Program to Calculate Average of Numbers Using Arrays.

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

Example:-  Average of  1,2,3,4,5 is (1+2+3+4+5)/5 = 3.

Program:-

#include <iostream.h>
#include<conio.h>
void main()
{
clrscr();
    int n, i;
    float num[100], sum=0.0, average;
    cout << "Enter the numbers of data: ";
    cin >> n;
    while (n > 100 || n <= 0)
    {
        cout << "Error! number should in range of (1 to 100)." << endl;
        cout << "Enter the number again: ";
        cin >> n;
    }

    for(i = 0; i < n; ++i)
    {
        cout << i + 1 << ". Enter number: ";
        cin >> num[i];
        sum += num[i];
    }

    average = sum / n;
    cout << "Average = " << average;
getch();
}
Output:-

Output!!!!!!!1