- #1
Hex5f
- 3
- 0
Hello,
For this type of question:
There are 5 green and 45 red marbles in the urn. Standing next to the urn, you close your eyes and draw 10 marbles without replacement. What is the probability that exactly 4 of the 10 are green?
I understand that I can use Hypergeometric distribution, which takes into account the changing probability of the balls after each draw. But how can answer the same question when the green balls are distributed with some distribution (exponential for example) ?
I've been thinking that I may calculate the expected value of the green marbles and then calculate this as before when the population of the green marbles is the expected value. Would it be correct ?
Thanks
For this type of question:
There are 5 green and 45 red marbles in the urn. Standing next to the urn, you close your eyes and draw 10 marbles without replacement. What is the probability that exactly 4 of the 10 are green?
I understand that I can use Hypergeometric distribution, which takes into account the changing probability of the balls after each draw. But how can answer the same question when the green balls are distributed with some distribution (exponential for example) ?
I've been thinking that I may calculate the expected value of the green marbles and then calculate this as before when the population of the green marbles is the expected value. Would it be correct ?
Thanks