Calculate the average value using a foreach loop vs. a LINQ function.

CalculateAverage.cs

public void CalculateAverage()
{
    // Create and populate the list of numbers
    List<double> values = new List<double>();

    values.Add(1);
    values.Add(5);
    values.Add(21);

    // Calculating the average, using a foreach
    double total = 0;
    double counter = 0;

    foreach(double value in values)
    {
        total = (total + value);
        counter = (counter + 1);
    }

    double average = (total / counter);

    // Calculating the average, using LINQ
    double linqAverage = values.Average();
}