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Fig. A.1.


Correlation between the best-fit A value and the average parameters of the subsamples as obtained for every one of the 105 random subsamples. The correlation coefficient is also displayed in every plot. The parameters, moving from left to right and from top to bottom are: redshift, temperature, total hydrogen column density, flux, core metallicity, number of clusters, intrinsic scatter and RASS exposure time.

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