Lesson 4: Simple Regression

January 26, 2016

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Review:

• Correlation

Presentation:

• Simple (bivariate) regression
  • Fitting Lines to Data (video)
  • Calculate equation of the regression line
    • y = b1*x + bo
    • b1 = SSxy/SSxx
    • b0 = (∑y/n) – b1*(∑x/n)
  • Example: Problem 12.1

Activity:

• Complete problem 12.2 (p.474) and 12.6 (p.481) by hand

Assignment:

• Use Sheets or Excel to complete the following
  • Complete problem 12.8 (p.481)
  • Determine the equation of the regression line for your 10 selected countries (GDP and Fertility)
• Read p. 483-485, Residuals