Math 9 May 23 2017 May 22, 2017May 23, 2017 rpahlevanluMathematics 9, Today's Class Today: *WE ARE IN ROOM 221 TODAY* Ch 11 – Statistics 11.1 Factors Affecting Data Collection-1hcmlgk (WORD) 11.1 Factors Affecting Data Collection-1nwqf8o (PDF)