22.6 Linear Regression

  • Regression • Linear Regression • Method of Least Squares • Deviation • Least-squares Line • Using a Calculator • Interpolation • Extrapolation • Interpreting r and r2

In the previous sections of this chapter, we have discussed various statistical methods for graphically and numerically summarizing the values of a single variable. In this section, we will show how to describe the relationship between two different quantitative variables, which allows us to predict the value of one from the other. There are many situations where data points from paired data form a general straight-line pattern but don’t line up exactly along a straight line. In these cases, we wish to find the equation of a line that best fits the data ...

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