The answer depends on the nature of the variable for which data are to be graphed.
A colour-coded scatter plot is one option. Grouped bars is another.
true
The U.S. government does not evaluate claims between rival companies.
Sometimes comparisons are made between Sparta and Prussia, but they should not be taken literally.
How should I categories the panels I am considering?
why scientist should have intergrity
Scientist should infer technology
Questions should only be added into categories into which they fit; if applicable, select more than one category.
to ensure that you do not have a total consumption budget, which two categories should be added to your budget?
The scientist should use a light microscope.
Inventor & mad scientist
The scientist should use an electron microscope
I suppose "the Mohorovičić discontinuity" is what you are looking for. But, Mr. Mohorovičić was not a Yugoslavian, he was a Croatian. So the question should be "What was named after a Croatian scientist and is found between the crust and the mantle?", if the Mohorovičić discontinuity indeed is what you are looking for.