Consider an urn contains ten balls numbered $0,1, \ldots, 9$. Four balls are drawn randomly and one by one from the urn with replacement. (a) What is the probability that the four balls drawn are numbered 1 , 2,3 , and 4 . (b) What is the probability that the four balls drawn are all different. (c) What is the probability that the four balls drawn are all the same. (d) What is the probability that three balls drawn have the same number but the other is different.