What Is Regression

What is regression?

A) A statement about what will happen or might happen in the future, for example, predicting future sales or employee turnover.
B) A statistical process that finds the way to make a design, system, or decision as effective as possible, for example, finding the values of controllable variables that determine maximal productivity or minimal waste.
C) Predictions based on time-series information.
D) A statistical process for estimating the relationships among variables.