Hi;
Please see attached notebook for explanation where I am trying to plot additional information along x- axes using Epilog in the Plot function or Show by trying to combine the Plot and NumberLinePlot functions.
Thanks,
Mitch Sandlin
PlotQuestion.nb (162 KB)
The three additional points are just too close together with respect to the curve. As for your second attempt, here is how to show the three points:
Show[Plot[PDF[NormalDistribution[0, 1], x], {x, -5, 5}], NumberLinePlot[{0.0425371, 13/147, 0.134334}], PlotRange -> All]
The function NumberLinePlot places its points at y=1.
NumberLinePlot
y=1