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...Visit www ncerthelp com for all ncert solutions cbse sample papers question notes class to xi unit i chapter introduction important concepts meaning of statistics in plural sense it is a collection numerical facts deals with the presentation analysis and interpretation quantitative information definition means aggregate affected marked extent multiplicity causes numerically expressed enumerated or estimated according reasonable standard accuracy collected systematic manner predetermined purpose placed relation each other consumer person who buys goods services satisfaction human wants producer produces service holder working job gets paid provider gives others payment economic activity activities undertaken monetary gain earn income economics divided into three parts consumption b production c distribution we study their origin nature characteristics laws governing them refers which are produce generation studies how generated from process distributed among factors data terms numbers i...