Data Science Internship Interview Questions

10,891 data science internship interview questions shared by candidates

* Coding round followed by interview * Questions on Linear regression - how gradient descent works * RMSE * Logistic regrerssion * Cross entropy loss * question from project * Softmax activation * puzzle question * Question on convolution neural netwoks and its working * vgg 16 architecture * pca working * Convolution and padding
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Associate Data Science

Interviewed at Sigmoid

4
Sep 24, 2021

* Coding round followed by interview * Questions on Linear regression - how gradient descent works * RMSE * Logistic regrerssion * Cross entropy loss * question from project * Softmax activation * puzzle question * Question on convolution neural netwoks and its working * vgg 16 architecture * pca working * Convolution and padding

Monty Hall scenario with 100 options rather than 3 doors, once you see one you can’t go back. First level was set a threshold where you didn't need the max. Second level was now you want the max so use chance and odds probability rather than statistics reasoning. Be careful. Interviewer did not have subject matter expertise. Feedback was that keeping her taught/mentored during the process and comfortable was more important that solving the problem well.
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Manager - Data Science

Interviewed at CarMax

3.5
Aug 4, 2025

Monty Hall scenario with 100 options rather than 3 doors, once you see one you can’t go back. First level was set a threshold where you didn't need the max. Second level was now you want the max so use chance and odds probability rather than statistics reasoning. Be careful. Interviewer did not have subject matter expertise. Feedback was that keeping her taught/mentored during the process and comfortable was more important that solving the problem well.

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