Histograms and standard deviations of the original and resampled data sets. On the left, histograms of the original data, the resampled data sets and the MC realizations of the toy model Cas A image. On the right, the standard deviations of the resampled data sets and MC realizations bin by bin of the histogram on the left. We can notice the great adequation between the standard deviations of the resampled data sets and that of the MC realizations.