Elliel’s Department Store tracks its inventory on a monthly basis. Monthly data for the years 2008–2012 are in the file called Elliels.
a. Construct a line chart showing the monthly inventory over the five years. Discuss what this graph implies about inventory.
b. Sum the monthly inventory figures for each year. Then present the sums in bar chart form. Discuss whether you think this is an appropriate graph to describe the inventory situation at Elliels.