In the context of this exercise, what exactly is reproducibility?
Reproducibility means that another person is able to produce the same results using the same data, methods, and tools that the original experimenter used. This also means that the data and computer code used in the original analysis must be available for others to use and evaluate.
Essentially, this is used for verifying results and conducting alternative analyses. We should be able to obtain the same results, observations, and visualizations as the original.