Data Science Intern Interview Questions

10,887 data science intern interview questions shared by candidates

Machine Learning (Unsupervised Learning ) Artificial Intelligence like deep learning , activation function (SoftMax) Virtual Machine like Unix & Linux basic commands DSA (Breadth first ) & OOPs (Method Overloading) , SQL commands
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Data Science Intern

Interviewed at Trianz

4.2
Apr 4, 2024

Machine Learning (Unsupervised Learning ) Artificial Intelligence like deep learning , activation function (SoftMax) Virtual Machine like Unix & Linux basic commands DSA (Breadth first ) & OOPs (Method Overloading) , SQL commands

* 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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