can you tell me about the most challenging data project you've worked on and what were the outcomes of your insights?
Sr Data Scientist Interview Questions
3,387 sr data scientist interview questions shared by candidates
Feature selection, SQL problems, easy Leetcode problems
What is the difference between Gradient Descent, Stochastic Gradient Descent & mini-batch Gradient Descent?
What is the loss function used in logistic regression?
What's the difference between microservices and the monolith? Remember, this is for a data science position.
I think the open-endedness of the take home challenge is tough. They tell you it's supposed to be that way, but given I'm not getting paid, I'm not going to spend 8 hrs exhausting all possible analysis.
SQL questions on left join sum(case when), window function
Compare and contrast random forest to gradient boosting, How would you maximize profit with experimenting with price?
A machine learning project I worked on.
Write pandas code for filtering, grouping data etc. Write SQL for joining tables and building metrics. Apply statistical test to design A/B test
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