Mean biasing function estimated in real space (solid, red curve) and redshift space (dashed blue curve and its 2σ uncertainty band). Counts are performed in spherical cells with a radius of 4 h^-1 Mpc . The luminosity cut and the redshift range is indicated in each panel. The width of each band represents the scatter among mocks. In the bottom part of each plot we show the difference Δ_p between the reconstructed and reference PDFs in units of σ_TOT, where σ_TOT accounts for the rms scatter in both the real- and redshift-space mocks. Dashed lines indicate where systematic errors equal to 1σ_TOT random errors.