Observed and model light curves for both SGRBs and LGRBs. Right panel: LGRB afterglow models resulting from the Markov Chain Monte Carlo fit in Figure 1 and described in Section 3.1.3. These are interpolated at specific time steps for 8.46 GHz, R_c-band, and 1 keV, and their distributions in log-space are shown as colored points, with error bars denoting their standard deviations. Left panel: SGRB models are drawn from a manually selected distribution of parameters. The thin lines denote individual observed light curves, and population models are shown with the thick colored lines denoting the log-mean flux density and the shaded regions denoting the 90% confidence interval.