An emphasis on investigations involving data give students opportunities to depict the shape of data sets and use statistical characteristics of the data to describe similarities and differences among related sets. This book presents an assortment of probability discussions, activities, and investigations emphasizing the collection of data to develop the idea of probability as a measure of the likelihood of events that are meaningful and real to the students. The supplemental CD-ROM features interactive electronic activities, master copies of handouts, and additional readings. Topics: 1. Data Analysis (Long jump, how many stars can you draw in one minute, do you get enough sleep?), 2. Inferences and predictions, 3. Probability ideas and probabilistic reasoning.