Accord.Tests.Statistics.BetaDistributionTest.BetaMeanTest3 C# (CSharp) Method

        public void BetaMeanTest3()
        {
            int trials = 100;
            int successes = 78;

            BetaDistribution betaDistribution = new BetaDistribution(successes, trials);

            double mean = betaDistribution.Mean; // 0.77450980392156865
            double median = betaDistribution.Median; // 0.77630912598534851
            double p025 = betaDistribution.InverseDistributionFunction(p: 0.025); // 0.68899653915764347
            double p975 = betaDistribution.InverseDistributionFunction(p: 0.975); // 0.84983461640764513

            double orig025 = betaDistribution.DistributionFunction(p025);
            double orig975 = betaDistribution.DistributionFunction(p975);

            Assert.AreEqual(0.025, orig025, 1e-8);
            Assert.AreEqual(0.975, orig975, 1e-8);
            Assert.AreEqual(0.77450980392156865, mean, 1e-9);
            Assert.AreEqual(0.7763091275412235, median, 1e-9);
            Assert.AreEqual(0.68899667463246894, p025, 1e-6);
            Assert.AreEqual(0.84983461640764513, p975, 1e-6);
        }