Comparison of the linear galaxy bias parameter estimated from the average of 300 simulations before (blue circles) and after (red squares) the correction for the redshift bin mismatch of objects, with (a) the Gaussian error distribution with σ₀ = 0.02, (b) the Gaussian error distribution with σ₀ = 0.05, and (c) the modified Lorentzian error distribution with γ₀ = 0.02. The error bars on the parameters correspond to a single realisation.