I need some help and hopefully you can help me! And my apologies for not using latex - I am a total noob with it! My problem is:
A simple random sample of size n = 3 is selected with replacement from a population of size N = 10 whose mean and variance are Ybar = 26 and S^2 = 39.
a) Find the probabilities that the sample contains 2 and 3 distinct units respectively.
And I have been given the hint that the probability that the sample contains 1 distinct unit is p_1=1/(N^2) =0.01
Okay, for starts, regarding the hint, how was the p_1 derived? and how do we approach such a question? I don't want answers, but I really need guidance from someone out there as to where to start on this because I am really struggling at the moment! Thanks for your help in advance!