Figure 7.3. A one-state Markov model of tossing a biased coin
(After Rabiner and Juang 1993)
An equivalent model to figure 7.2 would be a one-state model in which the state corresponds to the single biased coin, and the unknown parameter is the bias of the coin (e.g. p(heads)).
Figure 7.3. A one-state Markov model of tossing a biased coin