MATH 221 Week 7 Correlation and Regression - Lesson
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$10.00
| Institution | MATH 221 Statistics for Decision-Making |
| Contributor | Rizelle |
Week 7: Introduction and Topics
Often, we'll want to know if two or more variables have some type of relationship. Can we use one to estimate the other? For example, suppose a person studies an average of 15 hours per week for a challenging class. Can we use that knowledge to estimate the person's overall grade? Can the amount of time a person spends in a vehicle per day be used to estimate the probability the person is obese? These types of estimates are not guarantees of what would happen. In other words, studying 15 hours each week does not guaranteed a high grade. We are considering connections between variables.
Questions like this can be answered using correlation and regression. In short, correlation is used to determine whether or not a relationship exists. (We will study only linear relationships.) Regression is determining the equation that relates one variable to another.
Week 7: Identify Variables
Week 7: Scatter Plots Week 7: Correlation
Week 7: Correlation is Not Causation Week 7: Regressions
Week 7: Coefficient of Determination, r^2 Week 7: Test Your Knowledge
| Instituition / Term | |
| Term | Summer 2021 |
| Institution | MATH 221 Statistics for Decision-Making |
| Contributor | Rizelle |
