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import java.util.Random;
class RandDemo {
public static void main(String args[]) {
Random r = new Random();
double val;
double sum = 0;
int bell[] = new int[10];
for (int i = 0; i < 100; i++) {
val = r.nextGaussian();
sum += val;
double t = -2;
for (int x = 0; x < 10; x++, t += 0.5)
if (val < t) {
bell[x]++;
break;
}
}
System.out.println("Average of values: " + (sum / 100));
for (int i = 0; i < 10; i++) {
for (int x = bell[i]; x > 0; x--)
System.out.print("*");
System.out.println();
}
}
}
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