How do you find an answer to a MAD (mean absolute deviation) chart?

I don't know -- but you may find the information you need in one of these sites.

http://www.google.com/webhp?source=search_app#hl=en&sclient=psy-ab&q=MAD+(mean+absolute+deviation)+chart&oq=MAD+(mean+absolute+deviation)+chart&gs_l=serp.3..33i29i30l2.2563057.2564311.0.2566517.1.1.0.0.0.0.106.106.0j1.1.0.les%3B..0.0...1c.1.6.psy-ab.Cd4J9sx9lwk&pbx=1&bav=on.2,or.r_qf.&fp=b216c9d9fd13dd85&biw=711&bih=453