Lab 8: Simple linear regression. Exercise 2. Incomplete question.

[mamcisaac]

Exercise 2 of Lab 8 (Simple linear regression) is incomplete. Students are asked to "select the six variables", but it isn't clear which 6 variables are meant. The provided solutions simply ignore this request to select variables.

[atamkin]

I just found this issue as well. I'm just telling my students to ignore that clause, but it caused a great deal of confusion for a while!