Connectivity of the Coma cluster. The cyan square refers to the Coma cluster as analysed in this work. Black crosses are the observed connectivity values from the AMASCFI Clusters (Sarron et al. 2019), green triangles are the observed connectivity values for the groups in COSMOS (Darragh-Ford et al. 2019), the purple line and shaded region are the relation from the numerical N-body simulations of Aragón-Calvo et al. (2010), and its corresponding 1σ uncertainty, while the solid orange line is the theoretical relation of Codis et al. (2018) renormalised to pass through our measurement for the Coma cluster, so as to provide a better comparison of trends. We note that the mass on the x-axis of the plot is M₂₀₀ for the Coma, Darragh-Ford et al. (2019), and Sarron et al. (2019) points, and a value close to M_vir for the Aragón-Calvo et al. (2010) and Codis et al. (2018) relations.