Mean of the detection probability of the [O III] ELSs at ⟨z⟩ = 0.83. The inset shows the detection probability distribution of all simulated pseudo-spectra described in Sect. 4 used to obtain the function represented here. The curve traces the least-squares weighted fit of the sigmoid function used to model such flux-binned mean values. Bars represent the mean standard error used for fit weighting.