http://digfir-published.macmillanusa.com/stat_tutor_html5/stat_tutor_html5_ch_5_residual_lines.html
Chapter
1. Residual Lines
58efd03e7894d2cc6800007a
http://digfir-published.macmillanusa.com/stat_tutor_html5/stat_tutor_html5_ch_5_residual_lines_dlap.xmlDLAP questions58efd03e7894d2cc6800007a