The mosaic plot on the next page shows the sales
The mosaic plot on the next page shows the sales of cigarettes by the three leading manufacturers, divided into six international regions. (Total sales in 2006 were approximately 2 trillion.)
(a) In which region are total cigarette sales the largest?
(b) In which two regions does British-American Tobacco command more than half of the market?
(c) Which share leads to higher sales: 80% of the market in the United States and Canada (like that of Philip Morris) or 80% of the market in Asia and the Pacific?
(d) Can you easily tell what percentage of Philip Morris’s sales is in western Europe?
(e) Are brand and region associated?
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