Histogram of the signed distance (Eq. (1)) of the star samples. Upper panel: star sample of the present study (considering only those with mild and strong enrichments, meaning 11 stars out of 15). Middle panel: Karinkuzhi et al. (2021a) sample of CEMP-rs (red) and -r (green) stars. Lower panel: Karinkuzhi et al. (2021a) sample of CEMP-s stars. The dashed line represents the d_S = 0.6 limit between CEMP-s and CEMP-rs stars, as defined in Karinkuzhi et al. (2021a).