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1. Case study - who will take the premium membership , discussion was a lot around features to be used and feature eng. and some fundamentals around - Undersampling, lime, shap, transformer model distillation , it was done by some third party and looked like interviewer didnt had much practical exp.
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Senior Data Scientist

Interviewed at JioHotstar

3.5★
Nov 4, 2025

1. Case study - who will take the premium membership , discussion was a lot around features to be used and feature eng. and some fundamentals around - Undersampling, lime, shap, transformer model distillation , it was done by some third party and looked like interviewer didnt had much practical exp.

There are two tables. The first table is 'RUN' and includes 'athleteID', 'RunID', 'RunDate', and 'RunTime'. The second table is 'Athlete' and includes 'AthleteID' and 'JoinDate' and 'Age'. Write a query that shows the percentage of athletes who participated in the program in April 2024, meaning they have records in Table 1. An athlete may have multiple records in Table 1, but they are unique in Table 2.
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Senior Data Scientist

Interviewed at NIKE

3.9★
May 15, 2024

There are two tables. The first table is 'RUN' and includes 'athleteID', 'RunID', 'RunDate', and 'RunTime'. The second table is 'Athlete' and includes 'AthleteID' and 'JoinDate' and 'Age'. Write a query that shows the percentage of athletes who participated in the program in April 2024, meaning they have records in Table 1. An athlete may have multiple records in Table 1, but they are unique in Table 2.

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