Learning objectives

• Least squares criterion for best fit of model to data
• Data as vectors, modeling vectors
• Simpson’s paradox

Before class

• Read textbook Chapter 8
• Complete Assignment Eight on the homework server.
• Post to Piazza

In class

• Discuss Quiz 4
• Discuss HW C6-05
• Cautionary modeling examples
• Vectors and best fit
• Case space and variable space

Daily Schedule|Homework Server|Rstudio|Piazza|Rcommands