    Sentenéd-1: Formally’ defiried’ v3. the sfaidard\ deviation of.  demand dividéd,by average demand -the-Caeficient-of variation  can bé-consideréd a measuré of vasidtioa thet, ig nortnalized; it  allows! us to ‘coripare the’ vaiiatioin.of'sdernand for-diffsrent  products, Sven’ iF the Svécage deinand oF the two products 1S  “quite diferent : :         Seiitévice’ 2: we: have! ay af cSrapafing the demarid for  different products.    