Marble is drawn at random from an urn that contains one white marble and onered marble. if the white marble is selected, we simply return it to the urn; if the red marbleis drawn, that marble–together with another red–are returned to the urn. then a secondmarble, a third marble, and a fourth marble are drawn, with the same rules for returningthem to the urn. calculate the probability of drawing two whites, followed by two reds.