Representation of the models p(I_main|L_X, z, N_H, T_exp, bkg) and p(I_cosmo|L_X, z, N_H, T_exp, bkg) for fixed values of cluster redshift z, two different values for the luminosity L_X, and local galactic absorption N_H, in addition to a nominal background level and a range of exposure times T_exp (along the x-axis). The shaded regions indicate the approximate 68% confidence range output of the model.