Left: correlation between the measured global asteroseismic parameters Δν and ν_max. The dashed line indicates the empirical relation from Huber et al. (2011) together with the 1- and 2-σ confidence bands on their relation. Right: KDE of the relative uncertainties on Δν and ν_max for the sample, with median values of ~1.6% in Δν and ~3.7% in ν_max. The ticks at the bottom of the panel indicate the individual values, coloured according to the legend.