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Updated weekly · Last refresh Aug 30

ReachMobi Data Analyst Interview Questions

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

30questions
~4htotal time
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1
SQL & Data ManipulationStart here. 8 questions + 2 drills · ~87 min
Calculate 30-Day User RetentionHard
Practice

Use CTEs, joins, and date filtering to calculate 30-day retention by signup cohort from login and feature usage data.

Window FunctionsDate FunctionsAggregationsReachMobi
Optimize a Poorly Performing SQL QueryMedium

Tests your SQL performance troubleshooting and optimization skills.

technical experienceReachMobi
Handling Missing or Inconsistent DataMedium

Tests your data quality troubleshooting and decision-making under imperfect inputs.

data cleaningreport preparationdata integrityReachMobi
Top Merchants Per City SQLMedium
Practice
Practice drill

Use a join, aggregation, and ROW_NUMBER to find the top three DoorDash merchants by completed sales in each city.

sql queryData AnalysisAggregationsDoorDash
Write Rolling Three-Month Averages SQLMedium
Practice
Practice drill

Use monthly aggregation, a calendar series, and window functions to calculate three-month customer transaction averages.

sql queryData AnalysisAggregationsCommonwealth Bank of Australia
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2
Metrics8 questions · ~67 min
Investigate User Engagement DeclineMedium

Investigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.

RetentionDiagnosisEngagement MetricsReachMobi
Determine Most Profitable ChannelsMedium

Assesses your channel profitability modeling using acquisition and retention data.

user retentionprofitabilityReachMobi
Calculate User Lifetime ValueMedium

Tests your ability to define and compute user LTV for app analytics decisions.

lifetime valueReachMobi
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3
Behavioral & Leadership12 questions · ~101 min
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4
More topics2 questions · ~17 min
Measure Feature Success Without HistoryMedium

Evaluates your experimental design and success metrics when baseline data is missing.

experimental designData AnalysisReachMobi
Prioritize Acquisition Channels With Limited BudgetMedium

Evaluates your prioritization framework using ROI, retention, and practical constraints.

ReachMobi
The finish line: interview-readyComplete all 30 questions plus 2 hands-on drills to finish this plan.