A grouped frequency distribution is required with

The World Trade Organization is an example of the type of international organization that has played a crucial role in which economic era?

A) ?Pre-National B) ?National C) ?International D) ?Global E) ?Post-Global

Policy analysts often investigate the ______ of a social problem in order to develop policy solutions that attack the problem before it might develop.

A. root causes B. proximate causes C. incremental causes D. factorial causes