using System;
using System.Collections.Generic;
using System.ComponentModel;
class MainClass
{
static void Main()
{
Action<IList<double>> printMean = delegate(IList<double> numbers)
{
double total = 0;
foreach (double value in numbers)
{
total += value;
}
Console.WriteLine(total / numbers.Count);
};
double[] samples = { 1.5, 2.5, 3, 4.5 };
printMean(samples);
}
}
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