CGI Group Data Scientist Interview Questions
The questions to prepare for a CGI Group Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Rank customers by total revenue within each region using a window function.
CGI GroupRank Genesys Cloud customers by completed revenue using aggregation, a CTE, and ROW_NUMBER().
Genesys
phDataCGI GroupUse GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.
Housecall Pro
Equifax
XYZExplain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.
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Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.
CGI GroupExplain how to choose an appropriate significance test based on metric type, study design, and the null hypothesis.
CGI GroupDesign an experiment that accounts for novelty effects and network spillovers before deciding whether to ship.
CGI GroupExplain which classification metrics to use and how metric choice depends on the business objective and error tradeoffs.
CGI GroupDiagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.
CGI GroupTests your product thinking and ability to define metrics that drive outcomes while managing risks.
CGI Group