Senior data analyst Interview Questions | Glassdoor.co.uk

Senior data analyst Interview Questions

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Describe the metrics one would use to evaluate a binary classifier.

2 Answers

Precision, Recall, F-score, Accuracy, ROC

Through questions like this, interviewers are mostly trying to test your skillset (and its relevance to the role) as robustly as possible, so be prepared for multiple offshoots and followups. It could be a useful exercise to do mocks with friends or colleagues in Bumble to get a real sense of what the interview is actually like. Alternatively Prepfully has a ton of Bumble Senior Data Scientist experts who provide mock interviews for a pretty reasonable amount. prepfully.com/practice-interviews

I was asked to complete a complex and open-ended data science task. Really used the full range of my data science skills.

2 Answers

what are the commonly used activation functions in Neural Networks?

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Asked questions on data extraction, and knowledge of big data workflow

1 Answer

I had to put together a metric for a Supply Quality score (sounds more complicated than what it is) by using available data on performance (could use internet data, too). I also had to answer advanced level SQL questions. After this it was mainly behavior questions. At one point there was also a case study where I had to understand the logic of profit increase if hotels dropped their prices last minute and they received more bookings.

1 Answer

How to join two sql tables and the difference between a union and join.

1 Answer

Talk about a recent project you've worked on

1 Answer

You're building a presentation based on someone else's general EDA. Which of these graphs/metrics would you include?

1 Answer

- What additional data sets could you have acquired to explore the data science challenge further?

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To explain statistical significance

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