22.7 Nonlinear Regression
Nonlinear Regression • Types of Curves on a Calculator • Choosing an Appropriate Regression Model
The method of least-squares regression can be extended to cases where the data points tend to curve rather than follow a straight line. This is called nonlinear regression. The specific mathematical techniques and formulas used for nonlinear regression are beyond the scope of this chapter. However, a calculator can be used to find many different kinds of nonlinear regression models. Figure 22.27 lists the types of regression available on most graphing calculators along with some examples of their shapes.
NOTE
[To choose an appropriate model, one should first plot the data to get a scatterplot. Then, depending on the ...
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