Exercises 5-8 refer to a bag filled with 3 yellow balls, 4 green balls, 2 blue balls, and 1 orange ball.

S.What is the probability of picking a red ball out of the bag?

6. What is the probability of picking a blue or yellow ball?

7. What is the probability of picking an orange ball?

8.What is the probability of picking a green ball?

9. What is the probability of picking a green or orange ball?