Of the following civic activities, which one do Americans participate in the most?

Special districts have the advantage of

a. being easy to establish and operate. b. offering great flexibility to governmental organizations. c. being able to remove technical problems from the political arena. d. bypassing the legal and organizational limitations of existing governments. e. All of the above are advantages.

What term is used for a sample drawn from an accessible population?

A) accessible sample B) ad hoc sample C) random sample D) target population