Line-of-sight velocity dispersion profile of the ensemble cluster (dots and 1σ error bars, estimated using Eq. (16) in Beers et al. 1990). Also shown are the MAMPOSSt results for M(r) and β(r) projected onto the velocity dispersion profile. Red curve and orange shading: ℒ-weighted average of all 35 best-fit model M(r) from the MAMPOSSt analysis, and 1σ error (reduced χ² = 0.6). Blue dashed curve: highest-ℒ among NFW models (reduced χ² = 0.7). Black dot-dashed curve: highest-ℒ model (Burkert, reduced χ² = 0.4). The last point (empty dot) represents the velocity dispersion of galaxies that were not used in the MAMPOSSt analysis because they are at R ≥ r₂₀₀.