Connectivity distributions of the Monte Carlo realisations for 300 random galaxies (different colours in the mock and observational datasets, shown respectively in the top and bottom panels. Each distribution is rescaled by its median value and therefore centred at x = 0 (thick vertical red line). The thin vertical lines with different line styles indicate the corresponding K_2D, noMC values, i.e. the results from a single measurement in the fiducial catalogue, without Monte Carlo sampling. These lines are often superimposed due to a quantisation effect: K_2D, noMC is an integer by definition; half-integer positions appear after rescaling when the median of the distribution is itself a half-integer.