how would you go about imputing data
Senior Data Scientist Interview Questions
3,509 senior data scientist interview questions shared by candidates
A project you worked on, feature selection, over-fitting of the model. What do you do when the features are correlated. What is the main difference between the F1 score and ROC-AUC? How do you decide between different models? What does MLE correspond to in Logistic Regression?
Why do you want to join Optum?
Showed Python code and asked to explain what it did, or correct errors
Answer the boy-girl problem.
Give examples of time series prediction algorithms,
How to grade a perfection of drawn circle?
If you could have one superpower, what would it be?
Machine Learning, what clustering method would you use for this data?
In 4 hours to develop a use case plus a presentation of multiple use cases I could think.
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