7. Multiple Choice Questions: Consumers Union measured the gas mileage per gallon of 38 1998-99 model automobiles on a special test track Union used. The following pie chart provides information about the country of manufacture of the acture of the model cars that Consumers 1. Based on this pie chart, we may conclude that a. Japanese cars get significantly lower gas mileage than cars of other countries. This is because their slice of the pie is at the bottom of the chart. b. more than half of the cars in the study were from the U.S. c. Swedish cars get gas mileages that are between those of Japanese and U.S. cars. d. Mercedes Benz, Audi, Porsche, and BMW represent approximately a quarter of the cars tested. 2. Which of the following bar graphs is equivalent to the pie chart in Question I? a. 10 10 France Germany Italy Japan Sweden U.S. France Germany Italy Japan Sweden U.S. b. d. 25 20 20 IS 15 10 10 n n France Germany Italy Japan Swedes U.S. France Germany Italy Japan Sweden U.S. 3. When drawing a histogram, it is important to a. make certain the mean and median are contained in the same class interval so the correct type of skewness can be identified. b. label the vertical axis so the reader can determine the counts or percent in each class interval. c. eliminate the extremes to minimize the effect of skewness. d. choose class intervals so all contain a similar number of observations. Page 5