This textbook is intended for use in introductory biostatistics course's for health science, nursing, and biology students. It deals with res earch designs used for collecting data, methods for summarizing data, and testing hypotheses in health and related fields. The emphasis is o n illustrating how statistics are generated and used by practitioners in health fields and interpreting crucial aspects of journal articles. Concepts are stressed rather than the usual computational methods. Ev ery major concept is accompanied by an exercise and correct answers, a nd these form an integral part of the text.