Corner plot showing the age and primary mass density distributions at the CHeB stage for the full sample as described in Sect. 3.2. The contours refer to the 1, 2, and 3σ credible regions. The observed values for KIC4937011 are plotted in red (see also Table 1). We see that our modelling correctly fits, within errors, the observed current age and mass of KIC4937011. As explained in Appendix A, we take as the reference time for the CHeB of each MC simulation the age that gives the highest likelihood.