public void TestAverage2()
        {
            double average = StatisticalMethods.Average();

            Assert.Fail();
        }
        public void TestAverage3()
        {
            double average = StatisticalMethods.Average(34);

            Assert.AreEqual(34, average);
        }
        public void TestAverage4()
        {
            double average = StatisticalMethods.Average(7, 6, 0, 9);

            Assert.AreEqual(5.5, average);
        }