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Do you find it difficult to manage your workload in your current position?

What’s your understanding of PCA and its inherent disadvantages?

What are the benefits and uses of nested SELECTs and WITH clauses in SQL programming?

How do you manage the challenge of skewed data when evaluating the effectiveness of a model, and which metrics do you rely on?

Share a story about a time when you disagreed with the approach of a team member.

How would you approach the problem of finding all the triplets that add up to a given target sum in an input array consisting of integers?

What are the dissimilarities between the K-means algorithm and the Expectation-Maximization (EM) algorithm?

Can you explain to me why you think Hootsuite is the right fit?

What criteria would you use to determine whether monthly retention is improving?

How would you approach building a demand forecasting model for a ride-sharing service? What factors would you consider and what data sources would you use? Can you walk me through the steps you would take to develop and validate such a model?