This book is one of a series in Course II of the Relevant Educational Applications of Computer Technology (REACT) Project. It is designed to point out to teachers two of the major applications of computers in the social sciences: simulation and data analysis. The first section contains a variety of simulation units organized under the following headings: The Computer Utility; Information Retrieval; Balance of Payments; Computer-Written Poetry; and Interpersonal Relationships. The second part consists of two basic statistical programs which perform the type of calculations and analysis frequently used in the social sciences. These are found under the headings Statistical Analysis and Best Line Fit for a Set of Points. Program runs and references to line numbers in the book apply to the Hewlett-Packard programs. A bibliography is also included. (FDI)