Mean relaxedness (computed with Eq. (1)) as a function of mass. Right panel: mean relaxedness for three different ellipticity bins: almost spherical (ϵ < 0.05), quite elliptical (0.05 < ϵ < 0.1), and elliptical (ϵ > 0.1). The gray line traces the mean relaxedness for all groups and clusters, regardless of their ellipticity. Left panel: mean relaxedness for four different connectivity bins: κ = 1, κ = 2, κ = 3, and κ > 3. The error bars are the errors on the mean, derived from bootstrap resampling.