Answer:
import java.util.Random;
import java.util.Scanner;
public class Dice {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("how many times want to roll: ");
int n = sc.nextInt();
Random ran = new Random();
int[] arr = new int[7];
int i = 0;
while(i < n) {
int r = ran.nextInt(6)+1; //1-6
arr[r]++;
i++;
}
double[] frequency = new double[7];
for(i=1; i<7; i++) {
frequency[i] = arr[i]/(double)n;
}
System.out.println("Number\t\toccurrences\t\tfrequency");
for(i=1; i<7; i++) {
System.out.print(i+"\t\t"+arr[i]+"\t\t\t");
System.out.println(String.format("%.5f", frequency[i]));
}
}
}
/*
Sample run:
how many times want to roll: 400
Number occurrences frequency
1 69 0.17250
2 71 0.17750
3 72 0.18000
4 59 0.14750
5 62 0.15500
6 67 0.16750
*/
Explanation:
