A public opinion poll reporting the president’s job approval rating is an example of a __________________.

Dr. Van Offer has proposed a study of a population with Hepatitis C, a blood/liver disease that is transmitted through contact with bodily fluids (sexual contact, sharing needles, etc.)

Since he does not have access to medical records because of confidentiality, how will he "find" this population, i.e. what type of sampling techniques might he use? What is this kind of population called? Give two other examples of this type of population. What will be an ideal response?

What is the “great danger” with respect to the intentions or actions of al Qaeda?

a. that the group will be able to draw the U.S. into a third ground war by proxy b. that the group will acquire and detonate a nuclear weapon c. that the group will destabilize the Middle East enough to cause a disruption of world energy supply d. that the group will be able to export its values to domestic communities in the U.S.