Problem 33P

A forest contains 20 elk, of which 5 are captured, tagged, and then released. A certain time later, 4 of the 20 elk are captured. What is the probability that 2 of these 4 have been tagged? What assumptions are you making?

Solution:

Step 1 of 2:

It is given that a forest contains 20 elk, out of which 5 are captured, tagged and are released.

Also, it is given that after some times, 4 of 20 elk are captured.

Using this we need to find the probability that 2 out of the 4 have been tagged.Also we have to mention the assumptions made.