A rule of thumb used by media outlets to determine which characteristics make a particular story more or less "newsworthy" (i.e., to determine which stories will be chosen for coverage over the others) is called

According to one study, the energy industry—primarily oil and gas companies and their peak associations—pumped more than $134.7 million into candidate committees and state parties between 1990 and 2004 . Roughly what percentage of those contributions went to incumbents?

a. 20 percent b. 50 percent c. 70 percent d. 99 percent

A researcher studying small town religiosity in the United States randomly selected 10 states. From these states, he randomly selected one tenth of all counties. From these counties, he randomly selected one tenth of cities with populations smaller than 10,000. From these towns, he obtained lists of all houses of worship and randomly selected three. From these, he selected 10 practitioners to be interviewed. In this example, which is NOT a cluster?

A. states B. counties C. practitioners D. houses of worship