Same-charge three-pion full and cumulant correlations versus $Q_3$ with Edgeworth fits in pp, p-Pb, and Pb-Pb collisions. Bottom panels show the ratio of the data to the fit. The fits assume $G=0$. The systematic uncertainties for $C_3^{\rm QS}$ are given by the shaded band while those for $c_3^{\rm QS}$ are the same after re-scaling by the ratio of correlation strengths. Only statistical errors are shown for the ratio. The average of the charge conjugated correlation functions is shown.