page contents
Chapter 9 websites
http://www.kidsmathgamesonline.com/numbers/meanmedianmode.html
https://www.quia.com/rr/51667.html
https://www.ixl.com/math/grade-5/mean-median-mode-and-range-find-the-missing-number
https://www.superteachertools.us/jeopardyx/jeopardy-review-game.php?gamefile=448822#.Vxobkc6TQ0s
https://www.studyladder.com/games/activity/median-range-and-mean-20542
https://www.ixl.com/math/algebra-1/mean-absolute-deviation
http://www.mathisfun.com/data/mean-deviation.html