The type of data described in the examples is bivariate data – “bi” for two variables. These are all examples in which regression can be used. The amount you pay a repair person for labor is often determined by an initial amount plus an hourly fee. In another example, your income may be determined by your education, your profession, your years of experience, and your ability. For example, is there a relationship between the grade on the second math exam a student takes and the grade on the final exam? If there is a relationship, what is it and how strong is the relationship? Professionals often want to know how two or more numeric variables are related. Calculate and interpret the correlation coefficient.Create and interpret a line of best fit.Discuss basic ideas of linear regression and correlation.Linear Regression and Correlation Student Learning Outcomesīy the end of this chapter, the student should be able to: 12 Simple Linear Regression and Correlationīarbara Illowsky Susan Dean and Margo Bergman
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