public void CalculatePoissonSampleMeanTest()
{
//Arrange
int[] numbers = new int[7] {
1, 5, 5, 4, 2, 1, 5
};
//Act
double result = ArrayHelper.CalculatePoissonSampleMean(numbers);
//Assert
Assert.AreEqual(Math.Round(result, 4), 3.2857);
}