Posterior probability distributions for (a) the internal Alfvén speed, (b) the density contrast, (c) the internal density, and (d) the magnetic field strength for a loop oscillation event with observed phase speed v_ph = 1030 ± 410 km s⁻¹ under model M₁, given by Eqs. (7) and (9). The inferred median values for the Alfvén speed and the magnetic field strength are km s⁻¹ and G, respectively, with uncertainties given at the 68% credible interval. Uniform priors were considered in the intervals v_Ai ∈ [1, 2000] km s⁻¹, ζ ∈ [1.1, 10], ρ_i ∈ [10⁻¹³, 10⁻¹¹] kg m⁻³, and B₀ ∈ [0.1, 100] G. Despite the visual impression, the marginal probabilities for v_Ai and B₀ at their zero values are zero because of the considered ranges.