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Barclays Data Analyst Interview Questions

The questions to prepare for a Barclays Data Analyst interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
Statistics & ProbabilityStart here. 22 questions · ~189 min
Expected Flips for Two HeadsMedium

Compute the expected waiting time to see two consecutive heads when flipping a fair coin.

DistributionsExpected ValueConditional ProbabilityBarclays
Conditional Probability in Fraud ScreeningEasy

Explain conditional probability and show how to compute the probability of one event given that another event occurred.

VarianceExpected ValueConditional ProbabilityBarclays
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2
Pipelines8 questions · ~69 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityBarclays
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3
SQL & Data Manipulation9 questions + 3 drills · ~107 min
4
Behavioral & Leadership6 questions · ~51 min
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5
More topics5 questions · ~43 min
Two Sum with Hash MapEasy
Practice

Find two indices whose values sum to a target using a hash table in O(n) time.

Hash TablesArraysSortingBarclays
Present Your Research Project ClearlyEasy

Explain how you would discuss a research project in an interview with clear structure, stakeholder awareness, and measurable outcomes.

Trade-offsSuccess CriteriaScope ManagementBarclays
ETF Primary vs Secondary MarketEasy

Evaluates your product knowledge of how ETFs trade and where liquidity is formed.

market understandingBarclays
Problem-Solving Under Delivery PressureEasy

Explain how you would structure decisions, communication, and risk management when solving problems under delivery pressure.

Trade-offsSuccess CriteriaRisk AssessmentBarclays
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