Pseudo-χ² statistic distribution of effective temperature, star mass, surface gravity, and age for the frequencies of model #10001. Models that fall within the 1σ spectroscopic box are shown in green, those of the 3σ spectroscopic box are in blue, and all others are in black. The horizontal dashed grey line marks the position of pseudo-χ² = 1, and the vertical red line shows the actual value for model #10001.