Try:
ListPlot[Range[10], PlotMarkers -> {Automatic, Tiny}]
Where Tiny can be changed to Medium, Large, or a number
See also:
https://community.wolfram.com/groups/-/m/t/Hyperlink%5B%22https://reference.wolfram.com/language/howto/%5C%20ChangeTheSizeOfPointsInA2DScatterPlot.html%22%5D
.........Jos
Replace your {Tiny, Tiny, Tiny, Tiny} with {Automatic, Tiny}.
SH
Thank you very much for your answer, but if it is no trouble I would like to ask you for further assistance.
When I write the what you sugest, the markers become the very words Tiny and large (see attached file).
Can you please tell me what am I doing wrong?
Thanks again. Jaime,
