Fall. 4 credits. Forbidden Overlap: Students who take ECON 3130 may not receive credit for BTRY 3080/ILRST 3080/STSCI 3080, ECON 3110/ILRST 3110/STSCI 3110, ECON 3125 (formerly 3210), MATH 4710, MATH 4720.Staff.Provides an introduction to statistical inference and to principles of probability. It includes descriptive statistics, principles of probability, discrete and continuous distributions, and hypothesis testing (of sample means, proportions, variance). Regression analysis and correlation are introduced.