Data Scientist Trainee Interview Questions

72 data scientist trainee interview questions shared by candidates

The HR was very cool and I guess everyone in the company is.Dont Lie in resumes by the way.The obvious question "Tell me about yourself?"You know the answer to it!!!:) And then after that he told me about himself,his college,how long has he been working here and what do they do
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Trainee Data Scientist

Interviewed at Mu Sigma

3
Sep 3, 2017

The HR was very cool and I guess everyone in the company is.Dont Lie in resumes by the way.The obvious question "Tell me about yourself?"You know the answer to it!!!:) And then after that he told me about himself,his college,how long has he been working here and what do they do

Given a dataset of 1 millions of customers divided in two categories : churners and non-churners. We assume that the distribution is like this : ~10% are churners. Note :We define a churner as a customer that have left our company (unsubscribed). What would be your plan to reduce churn, and how would you proceed ?
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Data Scientist Trainee

Interviewed at CANAL+ Group

4.1
Jun 24, 2025

Given a dataset of 1 millions of customers divided in two categories : churners and non-churners. We assume that the distribution is like this : ~10% are churners. Note :We define a churner as a customer that have left our company (unsubscribed). What would be your plan to reduce churn, and how would you proceed ?

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