It is time to introduce you to the topic of MLR. In SLR, you will use a single predictor variable. Most business problems deal with outputs dependent on more than two input variables. MLR is the technique used for situations having two or more predictor variables.
In the Using a simple linear regression section, you looked at revenue as a function of the marketing budget. You learned a great deal about the relationship by regressing the
revenues variable on the
The total amount spent on marketing is the sum of
You will formulate ...