g.Regression

The essence of the relationship between variables in a dataset can be determined using regression techniques. In some cases, such connections may be causal, and in others, they may only be correlations. Regression is a simple white box technique for revealing the relationships between variables. In areas of forecasting and data modeling, regression methods are used (**Figure 2**).

#### **Figure 2.** *Illustration example of linear regression on a set of data [15].*
