For Exercise 4.54, see page 195; for 4.55, see page 197; for 4.56, see page 198; for 4.57 and 4.58, see pages 198–199; for 4.59 and 4.60, see page 200; and for 4.61, see page 202.
4.55 Probability that sum of dice is even or greater than 8.
Suppose you roll a pair of dice and record the sum of the dice. What is the probability that the sum is even or greater than 8?
4.55
0.6666.