In this video, we will discuss polynomial regression which is another linear regression with a slight change that it follows a curve line to satisfy the dataset. Polynomial Regression is a form of linear regression in which the relationship between the independent variable x and dependent variable y is modeled as an nth degree polynomial. Polynomial regression fits a nonlinear relationship between the value of x and the corresponding conditional mean of y, denoted E(y |x), These are basically used to define or describe non-linear phenomenon such as:
The growth rate of tissues.
Progression of disease epidemics
Distribution of carbon isotopes in lake sediments

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