Program:

The source code to calculate the MEAN of a set of given numbers is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//C# program to calculate the MEAN of a set of given numbers.

using System;
using System.Collections.Generic;

class Demo
{
    private static void Main()
    {
        List<double> list = new List<double> { 11, 22, 33, 44, 55};
 
        double mean= 0;
        double sum = 0;

        int loop = 0;

        for (loop = 0; loop < list.Count; loop++)
        {
            sum += list[loop];
        }

        mean = sum / (list.Count - 0);
 
        Console.WriteLine("Mean: "+mean);
    }
}

Output:

Mean: 33
Press any key to continue . . .

Explanation:

Here, we created a class Demo that contains a static method Main(). The Main() method is the entry point of the program. Here we created the list of numbers, and then calculate the MEAN of the given list of numbers. After that, we printed the calculated MEAN on the console screen.