STA 4001
Stochastic Processes
Fall 2024
Homework 2
Due Oct 8-th Midnight
1. A total of m white and m black balls are distributed among two urns, with each urn containing m balls. Ateach stage, a ball is randomly selected from each urn and the two selected balls are interchanged. Let Xn denote the number of black balls in urn 1 after the nth interchange.
(a) Give the transition probabilities of the Markov chain Xn, n ≤ 0.
(b) Find the limiting probabilities and show that the stationary chain is time reversible.