Comparison of the number of group members, N_mb, for the gETGs (left) and mETGs (right). In each subsample, we separately consider the sources based on their radio properties. The 34 mETGs with N_mb > 65 (22 undetected, 10 compact, and 2 extended), all belonging to the Coma cluster, are not shown for more clarity. Similarly, there are 9 gETGs with N_mb > 65 (3 undetected, 5 compact, and one extended).