*Regression analysis is a set of statistical methods used for describing the relationships between independent variables and dependent variable. Our main goal is to estimate the relationships between dependent variable(also known as **response variable**) y and one or more independent (also known as **predictor **or **explanatory**) variables (X). It can be used to evaluate the s**trength of the relationship **between variables for modeling the future relationship between them.*

Suppose we observe bivariate data (X, Y ), but we do not know the regression function E(y | X = x). …

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