Arrays opgave

using System;

class Avg
{
    public static void Main()
    {
        int[] arr = { 1, 2, 6, 2, 18, 7, 9 };
       
        int i=0;
        int sum = 0;
        float average = 0.0F;
       
        for (i = 0; i < arr.Length; i++)
        {
            sum += arr[i];
        }

        average = (float)sum / arr.Length;
       
        Console.WriteLine("Average of Array elements: "+ average);
    }
}

using System;

public class Avg
{
    public static void Main(string[] args)
    {
        int[] data = { 1, 2, 6, 2, 18, 7, 9 };
        int sum = 0;
        for (int i = 0; i < data.Length; i++)
        {
            sum += data[i];
        }
        double average = (double)sum / data.Length;
        Console.WriteLine("Average of Array elements: {0:F2}", average);
    }
}

using System;
using System.Linq;

public class Avg
{
    public static void Main(string[] args)
    {
        int[] data = { 1, 2, 6, 2, 18, 7, 9 };
        Console.WriteLine("Average of Array elements: {0:F2}", data.Average());
    }
}