1010data Data Scientist Interview Questions
The questions to prepare for a 1010data Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Find the top 10 products by total sales revenue using joins, aggregation, and a CTE.
1010dataAudit claims for missing members, invalid amounts, and payment totals that exceed billed amounts.
Healthfirst (New York)BBritvic Soft Drinks
AttentiveRank Roche products by revenue within each region for the last completed quarter using CTEs, joins, aggregation, and RANK().
Aubay Spain
Roche
Ayes - Management & Technology ConsultingHandle multiple comparisons in a growth experiment by pre-registering a primary metric, correcting secondary tests, and respecting guardrails.
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Framework for diagnosing churn and prioritizing product changes to improve retention in a subscription service.
1010dataExplain how to test whether an observed 5% conversion rate drop is statistically significant in an experiment or before-after comparison.
1010dataExplain precision vs recall and when business context should push you to optimize one metric over the other.
1010dataDesign a recommendation system strategy for new users and new items when interaction history is sparse or missing.
1010dataApproach for cleaning and preparing raw data inside an ETL pipeline.
1010dataAnalyze where users drop off in a product funnel and identify the biggest conversion leak.
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