Euclidean-normalized radio source counts at 3 (panel (a)) and 10 (panel (b)) GHz. Filled black circles show the source counts from COSMOS-XS. Open black circles show the source counts without corrections. Error bars correspond to the Poisson error for the uncorrected points. For the corrected points, the errors are propagated from the errors on the correction factors and the Poisson errors on the raw counts per bin. Corrected (filled) and uncorrected (open) VLA-COSMOS 3 GHz measurements from Smolčić et al. (2017b) are shown with blue points. The number counts from the simulation of Bonaldi et al. (2019) and predictions from Mancuso et al. (2017) are shown with purple and pink lines, respectively. Different line styles correspond to different source types as defined in the legend. The solid lines show the total source counts from the simulation. The shaded regions demonstrate the effect of cosmic variance and correspond to 1, 3, and 5 standard deviations in the source count measurements of the simulations by Bonaldi et al. (2019).