homework.java

機率統計作業平均數曲的越多 平均值越接近

import java.util.Random;

public class homework {

	public static void main(String args[]) {
		Random rand = new Random();
		int speed[] = new int[100000];
		for (int i = 0; i < 100000; i++) {
			speed[i] = rand.nextInt(150);// 0~150
		}
		double s[] = new double[10000];
		double sum = 0;
		int k = 0;
		int y=0;
		while(k!=100000) {
			for (int j = 0; j < 10; j++) {
				sum = sum + speed[k];
				k++;
			}
			s[y]=sum/10;
			y++;
			sum=0;
		}
		System.out.println("–舱10掸戈