DoorDash Data Scientist Mock Interview
Practice 30 DoorDash Data Scientist interview questions covering experimentation, marketplace metrics, and product analytics.
Question 21 of 30
Can you describe some of the steps you take to ensure that a regression model fits the data?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
This is an example of a technical question. As a data scientist, you can anticipate that most of the questions you will be asked during a job interview with Doordash will be technical. Technical questions should be answered succinctly and directly, with no embellishment. You should also anticipate that the interviewer will ask follow-up questions to learn more about the topic or clarify your answer.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"One of the key steps I take to ensure that the regression model fits the data is employing the R-squared methodology. This addresses the relative measure of fit. Another is to use the F1 score to evaluate the null hypothesis. One last methodology is a root-mean-square error, or RMSE, which provides the absolute measure of fit."
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