Question: An automotive company is considering the introduction of a new model of sports car that will be available in two engine types: four cylinder and six cylinder. A sample of customers who were interested in this new model were asked to indicate their preference for an engine type for the new model of automobile. The customers were also asked to indicate their preference for exterior color from four choices: red, black, green, and white. Consider the following data regarding the customer responses:

                        Four Cylinder             Six Cylinder

Red                          143                       857

Black                        200                       800

Green                       321                       679

White                       420                       580

a. Construct a clustered column chart with exterior color as the horizontal variable.

b. What can we infer from the clustered bar chart in part a?