Amplitude (left panel) and mass-ratio (right panel) distributions for our three populations CB2, CB3, and CB4. The solid black lines in the left panel show weighted histograms of the observed data. The solid blue, green, and red lines in both panels are obtained by marginalizing out the functional form of the Q₂ power law, and the dashed lines show Q₂ evaluated for the median values of b and q_min. The colored bands represent the 1σ credible intervals around the marginalized amplitude and mass-ratio distributions. The vertical dotted lines in the right panel compare the median values of q_min between the three populations.