Dell Technologies Data Scientist Interview Questions
The questions to prepare for a Dell Technologies Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Aggregate user activity by week, then use LAG to compare sessions and watch time versus the prior active week.
Dell TechnologiesCalculate 7-day rolling usage averages and rank Dell APEX users within each signup cohort.
Dell TechnologiesFind the top 10 products by total sales revenue using joins, aggregation, and a CTE.
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CatalinaDetermine sample size and power for a customer survey or experiment, including MDE, guardrails, and a disciplined decision rule.
Dell TechnologiesExplain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.
Dell TechnologiesInvestigate why a key KPI moved the wrong way after a product change and separate signal from noise.
Dell TechnologiesExplain how to test whether an observed experiment lift is real using hypothesis testing, p-values, and confidence intervals.
Dell TechnologiesAssesses your awareness of limitations, risks, and failure modes of large language models.
Dell TechnologiesTests ability to define metrics and guardrails for a Dell Technologies data science feature.
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