Histogram of the sums of the equivalent widths of Ti i, for the LMC 2013 sample. The CSGs later than M3 have been not included here, because their EW(Ti i) are affected by TiO bands (see Sect. 2.2). The few and scatter CSGs with values of EW(Ti i) lower than 1Å were considered outliers for this histogram and were not included. The width of the bins have been calculated by the Freedman-Diaconis rule, multiplied by a factor of 0.8.