Velocity-dispersion profile (left), DM density profile (middle) and PDFs of M₃₀₀ (mass at r = 300 pc) and ρ₋₂ (right), reconstructed for a mock cored classical dSph galaxy with an Osipkov–Merritt (top) or a constant (bottom) velocity anisotropy. For each model, the Jeans analysis is run using either an Osipkov–Merritt (blue) or a constant (red) anisotropy. Both give similar fits to the velocity-dispersion profiles, but using the wrong anisotropy profile leads to strong biases on both the DM density profile and the mass at 300 pc.