Mass-weighted ages and dust extinction values for our targets. Blue squares mark the confidence regions (3 to 1 σ going from light to dark points) extracted from the spectra alone. Red points show the solutions of the combined fit. Blue and red stars in each panel mark the best-fit solution from the spectroscopic fit and the combined fit, respectively. The relative probabilities of the extinction laws are shown for each galaxy. As a reference, we report the best-fitting combined solution at fixed extinction law as black and grey dots. Their colour-coding follows that of the aforementioned relative probabilities.