Comparing the SCATT_LO and AMPL_SIG values found for different types of variable sources in eRASS1, 2, and 3. Each dot represents a single SCATT_LO and AMPL_SIG value of a variable source in one of the three eRASSs. It also shows the values of the variability parameters for eRASSs in which the variable sources were not found above the 3σ thresholds. A likely Galactic source at an AMPL_SIG value of 78, and a SCATT_LO value of 0.82, is omitted from this figure, for display clarity.