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Why are you looking for a job at the moment?

Suppose we have a dataset of (date, duration) tuples. How would you filter by a specific time period and then generate summary statistics, including the average duration and rolling sum, for each date within that time period?

Build a KNN classifier from scratch.

What would be your strategy for balancing affordability for riders and making a profit for our company?

What are the meanings of false positives and false negatives in statistical hypothesis testing, and how do they affect the eventual outcomes?

Can you explain the process of training and deploying a machine learning model in a production environment?

What steps would you take to build a podcast search engine that lets users search for specific topics within show transcripts?

Can you tell us some of the key takeaways from a craft conference you recently attended?

What are your thoughts on heteroscedasticity.

When have you made a decision that didn't turn out the way you expected? What did you learn from that experience?