Data Associate Interview Questions

2,705 data associate interview questions shared by candidates

How do you handle imbalanced datasets when building a classification model? Explain the techniques you would use. What statistical tests would you use to compare the effectiveness of two different machine learning models? Why? Can you explain the bias-variance tradeoff and how it impacts the performance of a machine learning model? How would you evaluate the performance of a clustering algorithm, given that there are no true labels? What are the key assumptions of linear regression, and how would you test if they hold for a given dataset?
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Associate Data Engineer

Interviewed at Netradyne

3.5
Nov 27, 2024

How do you handle imbalanced datasets when building a classification model? Explain the techniques you would use. What statistical tests would you use to compare the effectiveness of two different machine learning models? Why? Can you explain the bias-variance tradeoff and how it impacts the performance of a machine learning model? How would you evaluate the performance of a clustering algorithm, given that there are no true labels? What are the key assumptions of linear regression, and how would you test if they hold for a given dataset?

Difference between mean vs median, Going through my work on the case study (useless b/c it is wasting more interview time that could be spent discussing my past work/projects/skill-set), Handling outliers or missing data, Graph questions (could not get to for length of interview) Make sure you explain things in a brief manner. That may have been why I did not move forward.
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Associate Data Scientist

Interviewed at Edelman

3.4
May 21, 2022

Difference between mean vs median, Going through my work on the case study (useless b/c it is wasting more interview time that could be spent discussing my past work/projects/skill-set), Handling outliers or missing data, Graph questions (could not get to for length of interview) Make sure you explain things in a brief manner. That may have been why I did not move forward.

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