Question 8.50
19. What is the probability that Laurie rolls a pair of dice and gets an even sum in each of her first three rolls in the game of Monopoly?
19.
The three events of tossing a pair of dice are independent events. The probability of rolling an even sum is 1/2 (there are 18 out of 36 ways to roll an even sum). Because there are three independent events, the probability that she will roll an even sum three times is (1/2)(1/2)(1/2) = 1/8 = 0.125.