1. Two dice are rolled. Find the probability that the score on the dice is at least 10.

2. A bag contains 9 red marbles, 5 blue marbles, and 2 green marbles.

What is the probability of choosing a blue marble?

3. A lottery game has balls numbered 1 through 21. What is the probability of

selecting an even numbered ball or a 8?

4. Container A has balls numbered 1 through 8. Container B has balls numbered

1 through 4. What is the probability that a 4 is drawn from A followed by a 2

from B?