Added 08 pdf
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Made minor modifications to lecture 2
Merge branch 'master' into gh-pages
Merge branch 'gh-pages' of github.com:bcaffo/courses into gh-pages
Converted RTTM lecture to ggplot2
slight work on the linear regression lecture
Added some ggplot to the lectures