What is meant by "is this regression material?"

Hello E E!

Thanks for reaching out!

In other words can you use the relation between the two variables (amount of beer and state) to create a simple regression.

Hope this helps!

Best,
The 365 Team

Thanks. Isn't the answer no? State is categorical, whereas beer is numerical. Shouldn't both variables be numerical in order to be able to create a simple (linear) regression?