    Sentence’: For exile, incréasing te inurber of products offred in  ‘vcaregony by a fator of four (say fiom ify itams 10°20) vnthout  increasing roa demand in te aregory would incrinsé she coefficient  of variation for sal individual product by a factor of tui.    Sentence 2: Ar incrasing inuber of products offered in.a éaregoiy  will definitly noe increase-the tonal demand. for the iton in. rhe  caveyory.