By popular demand, Release 17 of Minitab Statistical Software comes with a new graphical analysis called the Bubble Plot.
This exploratory tool is great for visualizing the relationships among three variables on a single plot.
To see how it works, consider the total medal count by country from the recently completed 2014 Olympic Winter Games. Suppose I want to explore whether there might be a possible association between the number of medals a country won and its maximum elevation. For that, I could use a simple scatterplot, right?
But say I want to throw a third variable into the mix, such as...