1. I have two 6-sided dice. One is numbered 1-6, and the other is numbered 5-10. What is the probability that when I roll them I will get...

What is the most likely sum?

2. Josh, Sarah, Kelly and Brian had these dice (make your own and try it yourself):

Josh: 2, 2, 2, 2, 6, 6
Sarah:3, 3, 3, 3, 3, 3
Kelly: 4, 4, 4, 4, 0, 0
Brian: 1, 1, 1, 5, 5, 5

a. If Josh and Sarah both roll their dice, who will have the higher number more often? What is the probability Josh will have the higher number?

b. If Josh and Sarah both roll their dice, and they add the numbers, what is the probability that the sum will be:

c. If Sarah and Kelly both roll their dice, who will have the higher number more often? What is the probability that Sarah will have the higher number?

d. If Kelly and Brian both roll their dice, who will have the higher number more often? What ist he probability that Brian will have the higher number?

e. If Kelly and Brian both roll their dice, and they add the numbers, what is the probability that the sum will be:

f. If Brian and Josh both roll their dice, who will have the higher number more often? What is the probability Brian will have the higher number?

g. Put the dice in order so that person 1 beats person2, person 2 beats person 3, person3 beats person 4 but person 4 beats person 1 (see page 539#6)

Answers