public void PooledStandardDeviationTest()
{
double[][] samples =
{
new double[] { 31, 30, 29 },
new double[] { 42, 41, 40, 39 },
new double[] { 31, 28 },
new double[] { 23, 22, 21, 19, 18 },
new double[] { 21, 20, 19, 18,17 },
};
double expected = System.Math.Sqrt(2.7642857142857147);
double actual = Measures.PooledStandardDeviation(samples);
Assert.AreEqual(expected, actual);
}