Скачать или смотреть Probability 40, Three Color Balls Combination Probability, Sampling of 2

An urn contains 9 blue balls and 5 red balls and 2 green. Two balls are picked up at random without returning the balls to the urn
1. What is the number of all possible outcomes, or the number of elements in the sample space?
2. What are the possible joint outcomes from the standpoint of colored balls?
3. How many 2 blue balls can be withdrawn ?
4. How many 2 red balls can be withdrawn ?
5. How many 2 green balls can be withdrawn ?
6. How many 1 blue & 1 red balls can be withdrawn ?
7. How many 1 blue & 1 green balls can be withdrawn ?
8. How many 1 blue & 1 green balls can be withdrawn ?
9. Find the probability of each disjoint event ?
10. Find the probability of picking at least one green ball ?
10'. Find the probability of picking at most one red ?
11. Find the probability of picking at most two red ?
12. Find the probability of picking neither red nor green ?
13. Find the probability of picking no red ?