Data Science Internship Interview Questions

10,899 data science internship interview questions shared by candidates

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.

Online Assessment: 2 LeetCode easy-medium questions with a 70 min time limit Round 1: -Asked about a recent research project on my resume. - Asked some basic computer vision questions: -- How does ResNEt work? -- Define the metric IOU -- What is the difference between Instance segmentation and semantic segmentation? -- How would you find the location of an object in 3D space with stereo cameras? Round 2: - Drill down on a previous interview experience - Asked basic questions about metrics used in computer vision (mAP, IoU, etc) - System design question -- Design a high level robot system that can identify books and place them on the shelf.
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Applied Science Intern

Interviewed at Amazon

3.5
Mar 28, 2023

Online Assessment: 2 LeetCode easy-medium questions with a 70 min time limit Round 1: -Asked about a recent research project on my resume. - Asked some basic computer vision questions: -- How does ResNEt work? -- Define the metric IOU -- What is the difference between Instance segmentation and semantic segmentation? -- How would you find the location of an object in 3D space with stereo cameras? Round 2: - Drill down on a previous interview experience - Asked basic questions about metrics used in computer vision (mAP, IoU, etc) - System design question -- Design a high level robot system that can identify books and place them on the shelf.

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