http://digfir-published.macmillanusa.com/stat_tutor_flash_backup/stat_tutor_flash_backup_ch_1_individuals_and_variables_2009.html
Chapter
1. Individuals and variables
595fcb4f7894d29629000006
http://digfir-published.macmillanusa.com/stat_tutor_flash_backup/stat_tutor_flash_backup_ch_1_individuals_and_variables_2009_dlap.xmlDLAP questions595fcb4f7894d29629000006