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Sr Data Analyst Interview Questions
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Qu'est-ce qu'un data analyst Senior comparé à un data analyst junior?
Student retention over consecutive months. The idea was to compute each student's longest uninterrupted streak of monthly activity (i.e., attending at least one class per month), and then group the student count by length of these streaks. It clearly required advanced use of window functions like row_number, lead/lag, and cumulative logic.
Explanation of the market research case study
Why do you want to work at carwow?
Give an example of the project where you used AB testing
Tell me about a workplace conflict and how you handled it.
Experience in python
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