DraftKings Analyst 1 Interview Questions and Answers

Simple case question about expected value. Question involved the expected price of attending a baseball game by purchasing tickets online, vs. a scalper, vs. watching online, etc.

Another simple case question. This time it was about optimizing a train station. You had to talk about which graphs you would make.

Q1. In one of your projects where you worked with data, how did you avoid overfitting?
Ans. 
I employed various techniques to prevent overfitting in my data analysis project, ensuring robust model performance.
• Used cross-validation to assess model performance on unseen data, ensuring it generalizes well.

• Implemented regularization techniques like L1 (Lasso) and L2 (Ridge) to penalize overly complex models.

• Reduced feature dimensionality using techniques like PCA (Principal Component Analysis) to focus on the most...read more
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Q2. Tell me about a time you had to work with data?
Ans. 
I worked with data to analyze customer feedback and improve product features.
• Collected customer feedback through surveys and reviews

• Organized data in spreadsheets for analysis

• Identified trends and patterns to make recommendations for product improvements
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