ociaw

var rng = new Random(42);
var sampleSize = 10_000_000;
var numbers = Enumerable.Repeat(0, sampleSize).Select(_ => rng.Next(0, Int32.MaxValue));
var heads = numbers.Count(x => x % 2 == 1);
Console.WriteLine($"Heads: {heads}, tails: {sampleSize - heads}");
// Output: Heads: 5,036,860, tails: 4,963,140

var popStdDev = Math.Sqrt(0.5 * 0.5);
var popMean = 0.5;
var sampleMean = (Double)heads / sampleSize;

ociaw

/*
 * A quick and dirty micro benchmark on passing a class vs a struct vs a struct by reference
 *
 * This is not necessarily a good benchmark. The code will likely perform much differently
 * under a more realistic scenario.
 *
 * Summary:
 * |                        Method |       N |              Mean |         Error |        StdDev | Rank |
 * |------------------------------ |-------- |------------------:|--------------:|--------------:|-----:|
 * |          BenchmarkMediumClass |       1 |         0.6700 ns |     0.0017 ns |     0.0016 ns |    2 |