# Question

Listed here are the six members of the Council of Oil and Petroleum Exporting Countries: Argentina, Bahrain, Colombia, Dubai, Ecuador, and Oman. You plan to take a sample of these member countries in order to estimate the group’s proven oil reserves. List all the equally likely samples if you use

a. Simple random sampling to choose a sample of size three. (You should list 20 samples.)

b. Systematic random sampling from the alphabetical list to choose a sample of size 3. (You should list two samples.)

c. Stratified random sampling to choose a sample of size four. You want to ensure that you end up with two Latin American countries and two Middle Eastern countries in the sample. (You should list nine samples.)

a. Simple random sampling to choose a sample of size three. (You should list 20 samples.)

b. Systematic random sampling from the alphabetical list to choose a sample of size 3. (You should list two samples.)

c. Stratified random sampling to choose a sample of size four. You want to ensure that you end up with two Latin American countries and two Middle Eastern countries in the sample. (You should list nine samples.)

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