This publication is composed of documentation material and a user's guide for the software used in this course. The materials in this book are extracted from an introductory college mathematics course designed to prepare high school students who have completed Algebra 2 for the variety of mathematics courses encountered in college. The principal goal of this material is to obtain information from data by giving students an opportunity to investigate and explore. The first chapter presents techniques used to summarize and display data of a single variable. Graphical display methods are also presented. The second and third chapters deal with the analysis of sets of ordered pairs and re-expression techniques based on characteristics of functions. The focus is on finding the best fitting curve and its interpretation as a model. Numerous examples and exercises are included in each chapter for classroom discussions and student assignments. Chapter four contains answer keys; chapter five is the guide for the software. The software provides programs for saving sets, tranforming data, generating summary statistics, and making various kinds of plots--stem-and-leaf, box-and-whisker, and scatter. An IBM PC-compatible disk requiring 512K memory completes the package. (RT)