The objective of this course is to provide a foundation in statistics and their application to questions in public policy and social science research. Key topics include measurement, data collection, descriptive statistics, probability theory, statistical inference for different types of data, and significance testing. As the augmented version of Public Policy 529, this course is aimed toward students who foresee themselves as practitioners of data analysis in their future careers. Compared with the standard version, there are higher expectations for understanding statistical theory and a greater reliance on math for learning course concepts.