3.8. Global warming seems largely a result of human activity that produces carbon dioxide emissions and other greenhouse gases. The Human DevelopmentReport2005, published by the United Nations Development Programme, reported per capita emissions in 2002 for the eight largest countries in population size, in metric tons (1000 kilograms)

per person: Bangladesh 0.3, Brazil 1.8, China 2.3, India 1.2, Indonesia 1.4. Pakistan 0.7, Russia 9.9, United States 20.1.

(a) For these eight values, find the mean and the median.

(b) Does any observation appearto be an outlier?

Discuss its impact on how the mean compares to the median.