Bernoulli.java in programe

Bernoulli.java

public class Bernoulli 

{ 

              public static int binomial(int N, double p) 

{

        int heads = 0;

        for (int i = 0; i < N; i++) 

{

            if (StdRandom.bernoulli(p)) 

{

                heads++;

            }

        }

        return heads;

    } 

              public static int binomial(int N) 

{

        int heads = 0;

        for (int i = 0; i < N; i++) 

         {

            if (StdRandom.bernoulli(0.5)) 

           {

                heads++;

            }

        }

        return heads;

    } 

                public static void main(String[] args) 

    { 

        int N = Integer.parseInt(args[0]);   

        int T = Integer.parseInt(args[1]);   

        StdDraw.setYscale(0, 0.2);

        int[] freq = new int[N+1];

        for (int t = 0; t < T; t++) 

        {

            freq[binomial(N)]++;

        }

                     double[] normalized = new double[N+1];

        for (int i = 0; i <= N; i++)

       {

            normalized[i] = (double) freq[i] / T;

        }

        StdStats.plotBars(normalized);

        double mean = N / 2.0;

        double stddev = Math.sqrt(N) / 2.0;

        double[] phi  = new double[N+1];

        for (int i = 0; i <= N; i++) 

        {

            phi[i] = Gaussian.phi(i, mean, stddev);

        }

        StdStats.plotLines(phi);

    } 

}