Answer: It reduces the omitted variable bias

**Explanation:** Multiple linear regression analysis is preferred over single linear regression primarily because it helps reduce omitted variable bias. **Key points:** 1. **Omitted variable bias** occurs when a regression model excludes relevant independent variables that affect the dependent variable. 2. When omitted variables are correlated with included independent variables, it can lead to biased coefficient estimates. 3. Multiple regression allows inclusion of multiple explanatory variables, providing a more complete model specification. 4. While modern software makes both simple and multiple regression accessible, the primary statistical advantage of multiple regression is addressing omitted variable bias. 5. Option A is incorrect because multiple regression is not necessarily simpler than single regression. 6. Option C is incorrect because multiple regression is generally more complex to model than single regression. **Why B is correct:** Multiple regression reduces omitted variable bias by allowing the inclusion of more relevant explanatory variables, leading to more accurate coefficient estimates and better model specification.

Author: Nikitesh Somanthe