[Tex/LaTex] How to reproduce this simple tree diagram


I would like to create this simple tree diagram in LYX. I tried using forest but I did not figure out how to add text to the different levels and display percentages.

enter image description here

Best Answer

Please always include the code you've got as it makes it much easier to help effectively. Not knowing how you tried to do things or what you have done makes it really hard to provide meaningful explanation.

The percentages, for example, are just done in the usual way i.e. with \%. The labels can be created with label.


  [, circle, fill, inner sep=1pt
    [80\%, label=left:Data Gathering
      [70\%, label=left:Data Analysis]


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