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Updated weekly · Last refresh Aug 30

Cobblestone Energy Business Analyst Interview Questions

The questions to prepare for a Cobblestone Energy Business Analyst interview. Questions from real interview reports rank first. Updated weekly.

25questions
~4htotal time
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1
Statistics & ProbabilityStart here. 6 questions · ~51 min
Probability of Sum NineEasy

Compute the probability that two fair six-sided dice add up to 9 by counting favorable outcomes over total outcomes.

DistributionsExpected ValueConditional ProbabilityCobblestone Energy
Compounded Two Day ReturnEasy

Compute the compounded two day return after a 15% loss followed by a 15% gain.

compound returnsmental mathpercentage changeCobblestone Energy
Mental Square Using AlgebraEasy

Compute 67 squared mentally using a simple algebraic identity and verify the result.

Estimationmental matharithmeticCobblestone Energy
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2
Strategy4 questions · ~34 min
Estimate Gas Stations in a CityEasy

A market sizing question that tests how you structure assumptions, estimate demand, and sanity check the number of gas stations in a city.

EstimationTAM/SAM/SOMMarket SizingCobblestone Energy
Entering a New Regional MarketHard

Tests your approach to market entry analysis using data, assumptions, and decision criteria.

Strategic Planningmarket entryCompetitive AnalysisCobblestone Energy
Contract Impact of Supply ShocksHard

Tests your understanding of market dynamics and how you translate them into trading-relevant analysis.

market dynamicssupply demandCobblestone Energy
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3
Behavioral & Leadership14 questions · ~119 min
High-Stakes Decision With Incomplete DataMedium

Tests decision-making under ambiguity, risk assessment, and stakeholder alignment when product data is incomplete or contradictory.

Decision MakingOwnershipDealing With AmbiguityCobblestone Energy
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4
More topics1 question · ~8 min
Handling Time-Bound AssessmentsMedium

Evaluates execution under time constraints and your approach to managing deadlines.

flexibilityCobblestone Energy
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