http://digfir-published.macmillanusa.com/stats_tutorial/bps6e_tutorial_0202_measures_of_spread.html
Chapter
1. Tutorial: Measures of Spread
52249327757a2eb978000000
http://digfir-published.macmillanusa.com/stats_tutorial/bps6e_tutorial_0202_measures_of_spread_dlap.xmlDLAP questions52249327757a2eb978000000