Left panel: cumulative metallicity distribution functions based on photometric metallicities for the Carina dSph. Right panel: the same as in the left panel, but based on spectroscopic metallicities. The cumulative distributions are separated according to values higher or lower than the median metallicity, indicated within each panel. In both cases, the vertical line indicates the location of the core radius, r_c, from Irwin & Hatzidimitriou (1995).