Ratio of sums versus average of ratios

gistfile1.java

public static void main(String[] args) {
    Random rd = new Random();

    int totalInputs = 0;
    int totalOutputs = 0;
    List<Double> rates = new ArrayList<>();

    for (int i = 0; i < 1000; i++) {
        int inputs = 1 + rd.nextInt(100_000);
        int outputs = /*rd.nextInt(inputs);*/ Math.min(rd.nextInt(10_000), inputs);  // 0.9*5000 + 0.1*5000 = 5000

        totalInputs += inputs;
        totalOutputs += outputs;
        double rate = 100 * (double)  outputs / inputs; // 0.9 *0.1 + 0.1 = 0.19
        rates.add(rate);

        System.out.printf("%d / %d = %f%n", outputs, inputs, rate);
    }

    double avgSuccess = rates.stream().mapToDouble(Double::doubleValue).average().getAsDouble();

    System.out.printf("%f vs %f", 100 * (double) totalOutputs / totalInputs, avgSuccess);
}