DSST Principles of Statistics Exam Prep

Answer: A - Regression coefficients b₁ and b₂ in a linear regression model represent slopes of the independent variables under study.

Key Takeaway: Multiple regression analysis is used to study the effect of two or more independent variables on the dependent variable. In the linear regression model, b₁ and b₂ are calculated slopes of the independent variables. For example, if a marketing researchers is studying income and level of education as independent variables, their slopes in the analysis would be represented as b₁ and b₂.