A rigorous introduction to statistics for students intending to study economics and other quantitative fields. Examples are drawn from finance, decision analysis, and economic decision making. In addition to descriptive statistics, probability, inference, and regression modeling, this course covers portfolio creation, decision analysis, and time series analysis. Students with prior exposure to introductory statistics will find some overlap of material but will be exposed to new applications and learn more advanced modeling techniques. The statistical software package R is used. Harvard has a site license for the software so it does not need to be purchased. Students may count one of the following courses toward a degree or certificate, but not more than one: STAT E-100, STAT E-101 (offered previously), STAT E-102, or STAT E-104.