Blizzard Entertainment Data Scientist Interview Questions
The questions to prepare for a Blizzard Entertainment Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Identify the major pitfalls in mobile game A/B tests and explain how to design around them before making a ship decision.
Determine the sample size needed to detect a meaningful A/B test effect at a chosen significance level and power.
Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Tests conflict resolution, prioritization, and influence when feature delivery conflicts with system stability.
Tests adaptability, research judgment, prioritization, and ownership when unexpected constraints disrupt a study.
Calculate daily Khan Academy seven-day rolling retention using CTEs, deduplication, date ranges, and a self-join.
Design a reliable engagement metric for bet365 In-Play betting during high-traffic sporting fixtures.
Identify the causes of a quarterly engagement decline through metric validation, decomposition, segmentation, and trend analysis.
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Calculate daily TikTok DAU and the percentage of eligible market users active each day.
TikTokCalculate daily test positivity and its rolling 7-day average for each patient cohort.
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