Three White Soldiers Pattern: What It Is, Indicates, and Examples

Three Colours: White (Trois couleurs : Blanc) 1994 in English Online

Three white and three black balls are distributed in two urns in such a way that each contains three balls. We say that the system is in state i, i=0,1,2,3, if the first urn contains i white balls. At each step, we draw one ball from each urn and place the ball drawn from the first urn into the second, and conversely with the ball from the second urn. Let Xn denote the state of the system after the n th step. Explain why {Xn, n=0,1,2, …} is a Markov chain and calculate its transition probability

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