The document provides information about collecting and summarizing data. It defines key terms like population, parameter, sample, statistic, descriptive and inferential statistics. It discusses different types of variables like quantitative, qualitative, continuous, discrete, ranked and categorical. Examples are given of different data types and how to collect, organize and present data in tables, graphs like bar graphs and pie charts. The last part contains exercises asking the reader to identify if variables are categorical or numerical, and if numerical, whether they are discrete or continuous.