Consoles This table summarizes the number of game consoles sold in three areas as of the end of 2010. The numbers are in millions.
(a) Present pie charts that show the market share within each geographic region. Size the pie charts to obey the area principle so that someone can see, for example, that the European market is larger than the market in Japan.
(b) Use a clustered bar chart to present these data, keeping the bars for each type of console in a group. What does this bar chart show that is not so evident in the pie charts?
Q43
Car Auction Each row of data indicates the make of vehicles sold at auction in the US in 2010. The data table describes 1,884 vehicles. (a) Using software, tabulate the frequencies of the makes of cars.
(a) Using software, tabulate the frequencies of the makes of cars.
(b) What is the mode of the make of car?
(c) Generate a pie chart that shows all of the relative frequencies. What’s a problem with this chart?
(d) Recode the variable that identifies the make of the car so that the resulting pie chart distinguishes the shares of the top five makes. Draw the new pie chart.