Introduction to statistical methods and reasoning. Nature and scope of statistical inquiries, collection, and presentation of data. Descriptive methods, with particular reference to frequency distribution, regression and correlation, index numbers and time series analysis. Elements of probability, sampling methods, sampling error, and principles of estimation and testing. Credit given for only one of the following courses: SSC 31000, ECO 20150, PSY 21500, SOC 23100, MATH 20900. Enrollment Requirements: PRE: ECO 10150, ECO 10250, ECO 10350 AND (MATH 20100 OR MATH 20500). Requirement Designation: Required Core - Mathematical&QuantitativeReasoning.