Question: The data on page 68 represent proven conventional oil reserves, in billions of barrels, subdivided by region and country:

Region & Country Proven Conventional Reserves (Billions of Barrels)

North America 54.8

Mexico 28.3
U.S. 21.8
Canada 4.7

Central & South America 95.2

Venezuela 76.9
Brazil 8.1
Other 10.2

Western Europe 17.2

Norway 9.5
Britain 5.0
Other 2.7

Africa 74.9

Libya 29.5
Nigeria 22.5
Algeria 9.2
Angola 5.4
Other 8.3

Middle East 683.6

Saudi Arabia 259.2

Iraq 112.5

United Arab Emirates 97.8

Kuwait 94.0
Iran 89.7
Qatar 13.2
Oman 5.5
Other 11.7

Far East and Oceania 44.0

China 24.0
Indonesia 5.0
India 4.7
Other 10.3

Eastern Europe & Former USSR 59.0

Russia 48.6

Kazakhstan 5.4

Other 5.0

a. Using the set of countries, construct a bar chart, a pie chart, and a Pareto diagram.

b. Using the set of regions, construct a bar chart, a pie chart, and a Pareto diagram.

c. Which graphical method do you think is best to portray these data?

d. Based on the results of (a ) and ( b ), what conclusions can you make concerning the proven conventional oil reserves for the different countries and regions?