A lottery win, snow at Christmas, unemployment rates in Germany - probabilities, statistics, and charts come in various forms for your students. Competent handling of data is also required in other subjects and many professions. Therefore, they must be able to read, understand, and evaluate graphical representations, as well as calculate probabilities independently. This volume first reviews important fundamentals of stochastic processes and various types of charts. It then introduces and practices creating tree diagrams and conducting and evaluating surveys. Relative and absolute frequencies, as well as mean, range, and variance, are discussed. With the learning success checks at the end of each chapter, you have the opportunity to identify your students' strengths and weaknesses.