Question bank
Practise the questions analysts actually face
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Questions are original sample content written for BDIM learners. They are not taken from any company's interviews.
38 questions
- When totals reverseData Interpretation · writtenAdvanced
- Reading a chart honestlyData Interpretation · multiple choiceFreeBeginner
- Percent vs percentage pointsData Interpretation · multiple choiceFreeBeginner
- Pass or fail flagExcel · Excel · formulaFreeBeginner
- Copying a formula with a fixed rateExcel · Excel · multiple choiceFreeBeginner
- Total revenue for one regionExcel · Excel · formulaFreeBeginner
- Count large ordersExcel · Excel · formulaFreeBeginner
- Average score in HuyeExcel · Excel · formulaFreeBeginner
- Population within reachGIS · writtenAdvanced
- Mapping counts vs ratesGIS · multiple choiceFreeIntermediate
- Measuring distance correctlyGIS · multiple choiceFreeBeginner
- Recognising overfittingMachine Learning · multiple choiceFreeBeginner
- Checking AI-generated summariesMachine Learning · writtenFreeIntermediate
- Spot the data leakageMachine Learning · multiple choiceFreeIntermediate
- Metrics for rare outcomesMachine Learning · multiple choiceFreeIntermediate
- Measure or calculated column?Power BI · DAX · multiple choiceFreeIntermediate
- Leading vs lagging indicatorPower BI · multiple choiceFreeBeginner
- Sum of two diceProbability · numericFreeBeginner
- At least one defective itemProbability · numericFreeIntermediate
- Positive screening resultProbability · numericAdvanced
- Filter a listPython · Python · short answerFreeBeginner
- Average by group in pandasPython · Python · multiple choiceFreeBeginner
- Clean missing valuesPython · Python · codeFreeBeginner
- Mean with missing values in RR · R · multiple choiceFreeBeginner
- Read a dplyr pipelineR · R · multiple choiceFreeBeginner
- Regions above a revenue thresholdSQL · SQL · multiple choiceFreeBeginner
- COUNT(*) vs COUNT(column)SQL · SQL · numericFreeBeginner
- Customers with no ordersSQL · SQL · multiple choiceFreeIntermediate
- Top product in each regionSQL · SQL · codeAdvanced
- Interpreting a p-valueStatistics · multiple choiceFreeIntermediate
- Typical household incomeStatistics · multiple choiceFreeBeginner
- Correlation and causationStatistics · multiple choiceFreeBeginner
- Interpreting a regression coefficientStatistics · multiple choiceIntermediate
- What a 95% confidence interval meansStatistics · multiple choiceFreeIntermediate
- Summarising a Likert itemSurvey Methods · multiple choiceFreeBeginner
- Fix the questionnaire itemSurvey Methods · multiple choiceFreeBeginner
- XLSForm skip logicSurvey Methods · short answerFreeBeginner
- Why use survey weights?Survey Methods · multiple choiceFreeIntermediate