/** Test of getVariance method, of class GeneralDiscrete. */
@Test
public void testmeanandvar() {
System.out.println("test mean and variance");
Map<Integer, Double> pdf = new HashMap<Integer, Double>(2);
pdf.put(1, 0.5);
pdf.put(3, 0.5);
GeneralDiscreteRandomVariable dist = new GeneralDiscreteRandomVariable(pdf);
assertEquals(2.0, dist.mean(), 0.000001);
assertEquals(1.0, dist.variance(), 0.000001);
}
