CompTIA
DY0-001 · Question #39
A data scientist is performing a linear regression and wants to construct a model that explains the most variation in the data. Which of the following should the data scientist maximize when…
The correct answer is B. R2. R² directly measures the proportion of variance in the dependent variable explained by the model; maximizing R² ensures you explain as much variation in the data as possible.
Mathematics and Statistics
Question
A data scientist is performing a linear regression and wants to construct a model that explains the most variation in the data. Which of the following should the data scientist maximize when evaluating the regression performance metrics?
Options
- AAccuracy
- BR2
- Cp value
- DAUC
How the community answered
(30 responses)- A3% (1)
- B90% (27)
- C7% (2)
Explanation
R² directly measures the proportion of variance in the dependent variable explained by the model; maximizing R² ensures you explain as much variation in the data as possible.
Topics
#R²#linear regression#regression metrics#model fit
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