It's more difficult to see the same patterns when the data is displayed in a table. Charts and graphs created by spreadsheet software can help answer our questions. We can also use charts and ...

Despite the importance and widespread use of graphs, we primarily rely on our intuition, common sense and precedent in published material when creating them—a largely unscientific approach.

That way, you can have all the pretty graphs in one place, while the source data stays hidden and doesn't clutter up the screen. Of course, that means first creating the graph in the same sheet as ...