2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/212730We compute the posterior distributions of the initial population and parameter of binary branching processes, in the limit of a large number of generations. We compare this Bayesian procedure with a more naïve one, based on hitting times of some random walks. In both cases, central limit theorems are available, with explicit variances.21 pagesProbability92D25; 62F15; 60J85text