Correlation of Γ and kT_e with the X-ray brightness of NGC 3227. The dashed orange line is the OLS fit to the data points. The dashed black line is the linear line drawn using the median values of the simulated parameters. The grey shaded region indicates the upper and lower errors in the fit parameters for OLS, and the green region indicates the errors in the fit parameter obtained from the simulation. In the least square analysis, epochs in which we were unable to constrain kT_e were dropped (indicated with red diamonds).