class RandomDataGenerator implements RandomData, Serializable {

    public double nextGaussian(double mu, double sigma) throws NotStrictlyPositiveException {
        if (sigma <= 0) {
            throw new NotStrictlyPositiveException(LocalizedFormats.STANDARD_DEVIATION, sigma);
        }
        return sigma * getRandomGenerator().nextGaussian() + mu;
    }

    public  RandomDataGenerator();
    public  RandomDataGenerator(RandomGenerator rand);

}