Average profile shapes. Left: median scaled mass profiles for the four methods investigated here. The bottom panel shows the median ratio of NP to model, with the error bars indicating the 68% interval. The ratios are evaluated at the same radius but are slightly shifted for better readability. Right: NFW mass-concentration relation for our sample. The small shaded ellipses indicate the 1σ contours of the fitted individual values for the 12 X-COP clusters individually, whereas the solid red and blue ellipses show the fitted sample mean and its 1σ and 2σ confidence regions, respectively. The curves show the predictions of N-body simulations (Ludlow et al. 2016; Diemer & Joyce 2019; Ishiyama et al. 2021).