Based on sales over a six-month period, the five cars with the highest sales were the Chevy Cruze, Ford Focus, Hyundai Elantra, Honda Civic, and Toyota Corolla (Motor Trend, 2 November 2011). Based on total sales, the market share for these five compact cars is the Chevy Cruze 24%, Ford Focus 21%, Hyundai Elantra 20%, Honda Civic 18%, and Toyota Co-rolla 17%. A sample of 400 car sales in Chicago shows the number of vehicles sold as follows:

Car units sold Chevy Cruze 108 WWww Ford Focus 92 Hyundai Elantra 64 Honda Civic 84 Toyota Corolla 52