$2.$ Wild $(2016)$ states that "Predictable variations in demand may cause an operation some problems, but at least if demand variation is known, the operation can plan for it$.$ Unpredictable variation in demand is significantly more difficult to deal with." For an organisation of your choice, identify the reasons for unpredictable and predictable demand and then provide insights as to how these scenarios are accommodated? What role does the provision of inventory have in the dealing with predictable and unpredictable demand?