Consider the supplv chain illustrated helnw:

Last year the retailer's weekly variance of demand was $190$ units. The variance of orders was $490,610,770,$ and $1,300$ units, for the retailer, wholesaler, distributor, and manufacturer, respectively. $($Note that the variance of orders equals the variance of demand for that firm's supplier.$)$

a$)$ The bullwhip measure for the retailer is $($Enter your response rounded to two decimal places.$)$

b$)$ The bullwhip measure for the wholesaler is $($Enter your response rounded to two decimal places.$)$

c$)$ The bullwhip measure for the distributor is $($Enter your response rounded to two decimal places.$)$

d$)$ The bullwhip measure for the manufacturer is $.($Enter your response rounded to two decimal places.$)$

e$)$ In this supply chain, the appears to be contributing the most to the bullwhip effect