using System;

using System.Linq;

​

​

public class random

{

​

    public static void Main()

    {

        Random rnd = new Random();

        var arr = new int[] { (rnd.Next(10,20)) };

    double avg = Queryable.Average(arr.AsQueryable());

      Console.WriteLine("Average = "+avg);

​

for(int j = 0; j < 4; j++)

{

    Console.WriteLine(rnd.Next(10, 20)); // returns random integers >= 10 and < 19

}

    }

​

}

​