Cumulative distributions of |Δz| for subsets of the spectroscopic sample within specific intervals of (from top to bottom) the r-band magnitude, z_best, odds, and z_err. Dashed lines represent predictions for a Gaussian distribution of Δz centred at Δz_sys = 0.001 and with standard deviations of 0.003, 0.01, and 0.03, and solid lines show the actual distributions for galaxies inside each bin. The inset plots on the right of the panels represent the relative number of galaxies contributing to each bin, coloured according to the central value of the bin. Cumulative distributions for bins containing fewer than 50 galaxies are not shown.