Consider a three-firm supply chain consisting of a rotailer, manufacturer, and supplier. The retailer's demand over an 8-week poriod was 110 units each of the first 2 weeks, 190 units each of the second 2 wecks, 290 units each of the third 2 weeks, and 400 units each of the fourth 2 weeks. The following table presents the orders placed by each firm in the supply chain. Notice, as is oftien the case in supply chains due to economies of scale, that total units are the same in each case, but ferms further up the supply chain (away from the retaler) place larger, less frequent, orders. Click the icon to view the orders placed by each firm in the supply chain. Click the icon to view the ways of calculating the variance. More Info a) What is the bulwhip measure for the retailen The bullahip measure for the retaller is (Enter your rospanse rounded to two decimal piaces.)