Analyze advertiser spend by source

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Quick Overview

This question evaluates proficiency in data manipulation and analytics using SQL or Python, testing skills such as joins, time-based filtering, cohort identification, aggregation, percentage share calculations, and monthly source-level rollups.

Analyze advertiser spend by source

Company: Meta

Role: Data Scientist

Category: Data Manipulation (SQL/Python)

Difficulty: medium

Interview Round: Onsite

Overview: This question evaluates proficiency in data manipulation and analytics using SQL or Python, testing skills such as joins, time-based filtering, cohort identification, aggregation, percentage share calculations, and monthly source-level rollups.

Read the full Meta Data Scientist interview experience this question came from

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Meta
Feb 9, 2026
mediumData ScientistOnsiteData Manipulation (SQL/Python)
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