Each data set consists of the independent variable xand the corresponding
value of the dependent variable y. The purpose of regression analysis is to
seek out mathematical relationship between the dependent variable y and the
independent variable x. The relationship selected predicts the value of the
dependent variable with the least error.
There are two types of regression analyses covered in this section; linear
and polynomial.
Linear Regression
Sometimes the use of a straight-line relationship may be adequate to represent
physical data over a limited range. The objective is to determine the ...
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