4.113 Roll a pair of dice two times. Consider rolling a pair of fair dice two times (see Exercise 4.48, page 234). For each of the following pairs of events, tell whether they are disjoint, independent, or neither. a. A = {8 on the first roll}, B = {8 or more on the first roll}. b. A = {8 on the first roll}, B = {8 or more on the second roll}. c. A = {6 or less on the second roll}, B = {6 or more on the first roll}. d. A = {4 or less on the second roll}, B = {6 or less on the second roll}.