Santander Data Scientist Interview Questions
The questions to prepare for a Santander Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Compute the probability that two fair six-sided dice add up to 9 by counting favorable outcomes over total outcomes.
SantanderExplain how random forests work, why they reduce variance, and when they are a good choice.
SantanderCompare pre and post campaign conversion rates by customer signup cohort using joins, a CTE, conditional aggregation, and date intervals.
SantanderDesign an incrementality experiment for a co-branded card campaign, including lift metric, power, guardrails, and launch criteria.
SantanderDiagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.
SantanderAssesses your ability to evaluate classifiers with threshold-independent metrics relevant to banking.
SantanderEvaluates your end-to-end reasoning for data-driven site selection for a bank expansion decision.
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Calculate each user's seven-day rolling average of daily events using PostgreSQL window functions.
BounteousFFreelancerBBoston Tech IndiaCalculate each user's daily and cumulative Reddit comment count, including dates with no activity.
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