8. A box contains 4 red balls, 3 black balls, and 8 yellow balls. (a) Suppose that a ball is randomly selected. Determine the proba- bility the ball is red. (b) Now suppose two balls are randomly selected one at a time with- out replacement. Determine the probability that a yellow ball is selected followed by a black ball. 9. You roll 6 standard six sided dice. Determine the probability you roll at least one five. 10. You roll 12 standard six sided dice. Determine the probability you roll at least two fives. 11. You have a standard deck of 52 cards. Two cards are randomly selected one by one without replacement. Determine the probability at least one of the cards is an Acc. 12. A fair 6 sided die is rolled 3 times. Determine the probability of getting at least one odd number