package renshu1;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;

public class ex5_1 extends JApplet {
  double a[] = {10.0, 20.0, 30.0, 40.0, 50.0};

  //アプレットの初期化
  public void init() {
  }

  public void paint(Graphics g) {
    double sum = 0.0;
    double ave;
    double dis = 0.0;
    for (int i=0; i<a.length; i++) {
      sum += a[i];
    }
    ave = sum / a.length;
    for (int i=0; i<a.length; i++) {
      dis += Math.pow(a[i] - ave, 2.0);
    }
    dis /= a.length;
    g.drawString("合計=" + sum, 20, 20);
    g.drawString("平均=" + ave, 20, 50);
    g.drawString("分散=" + dis, 20, 80);
  }
}