A two-valued qualitative variable can be represented by a single 0-or-1-valued "dummy" variable. If a qualitative variable has three or more possible values (e.g., make-of-car, or marital-status), ...

Business owners are constantly gathering information to help develop strategies to improve marketing and sales. Ultimately, the goal is to improve the bottom line, with better targeting of a company's ...

A human craving for simplicity is hindering retail’s optimization of artificial intelligence (AI) and machine learning (ML) across supply and demand planning. Retailers are overlooking qualitative ...

The standard linear regression model does not apply when the effect of one explanatory variable on the dependent variable depends on the value of another explanatory variable. In this case, the ...