Lesson 6: Relationships Between Measurement Variables

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  • Read Chapters 10 and 11 in the text.
  • Work through the Lesson 6 online notes that follow.
  • Complete all lesson assignments as listed in the Canvas Module.

Learning Objectives

Chapters 10 and 11

After successfully completing this lesson you should be able to:

  • Explain the major features of correlation.
  • Identify the key features of a regression line.
  • Apply what it means to be statistically significant.
  • Find the predicted value of y for given choice of x on a regression equation plot.
  • Critique evidence for the strength of an association in observational studies.

Terms to Know

click on the terms to learn more

From Chapters 10 and 11

  • correlation
  • straight line (linear) relationship
  • positive correlation (association)
  • negative correlation (association)
  • statistically significant
  • outlier
  • explanatory (predictor) variable (x)
  • response variable (y)
  • least squares
  • regression equation (line)
  • extrapolation