STATS 250 Study Guide - Dependent And Independent Variables, Standard Deviation, Scatter Plot

• School: U of M
• Department: Statistics
• Course: STATS 250
• Professor: All

Document Summary

Please hand in your assignment 10: assignment 11 is due next week, please sign in the attendance sheet, please download the dataset poverty. sav onto your desktop, final exam is on thursday apr. Spss module 9, activities 1 4. Regression investigates the relationship between two or more variables, called the explanatory (predictor or independent) and the response (dependent. ) Examine scatterplots to get an idea of the relationship between the variables (if one exists. ) Strength (how closely points follow the relationship) . If a relationship exists, it does not necessarily imply causation- just a relationship. If a linear relationship can bee seen, a least squares regression line can be calculated. This line can be used to describe the relationship between the variables and make predictions. This is the easiest case, when we are only comparing two variables. It can be done for many more, it is just hard to graph/visualize. The b"s are unknown parameters, that we estimate with the data.