Product & Design Data Scientist Interview Questions
The questions to prepare for a Product & Design Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Explain how a primary metric differs from a guardrail metric and how both are used in A/B test decisions.
Product & DesignIdentify major online experiment pitfalls and explain how they can bias results in a streaming product A/B test.
Product & DesignExplain what a p-value means in hypothesis testing and how it relates to statistical significance.
Product & DesignTests practical SQL skills to derive core funnel and retention metrics from player events for Product & Design.
Product & DesignAggregate user activity by week, then use LAG to compare sessions and watch time versus the prior active week.
B Lab Global
Tapad
ScaleCalculate month-1 retention for January vs February signup cohorts using joins, date filtering, and aggregation.
Trideum
Zulily
eBayUse CTEs, joins, and date filtering to calculate 30-day retention by signup cohort from login and feature usage data.
Curefit
ReachMobi
IndeedTests techniques for learning under class imbalance in VIP targeting for Product & Design’s social casino audience.
Product & DesignDiagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.
Product & DesignTests ability to define actionable metrics and connect a north star to supporting KPIs for Product & Design’s social casino products.
Product & DesignTests metric selection, offline/online evaluation strategy, and success criteria for recommendations in Product & Design’s store.
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