Distribution, s(ω), of spectral energy fluxes as a function of oscillation frequency (top panels) and the number of oscillations for each frequency bin (bottom panels). The vertical bars show an uncertainty of (${\sigma }_{\omega }={\sigma }_{\mathit{Fi}}/\sqrt{n_{\omega i}}$). A bin size of 0.1 has been considered. The best fits of distributions are shown as dashed lines. The fitting was only considered for bins containing more than one case. Blue, red, and black represent oscillations in the QS, ARs, and all regions, respectively. The power-law slopes are δ_QS = −1.59 ± 0.24, δ_AR = −1.79 ± 0.16, and δ_ALL = −1.59 ± 0.17, respectively.