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Data Scientist Interviews

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Data Scientist Interview Questions

In a data scientist interview, expect employers to ask questions that assess your data modeling, problem-solving, and programming skills. Be prepared to answer general questions that test your knowledge of statistics and data science. You should also be ready to answer open-ended questions that test your creativity, communication skills, and formal education in data modeling and programming.

Top Data Scientist Interview Questions & How to Answer

Question 1

Question #1: Which data modeling techniques do you prefer and why?

How to answer
How to answer: Turning data into understandable and actionable information is a critical part of the data scientist's job. This question allows employers to understand your data modeling skills and background. List and discuss your preferred data modeling techniques, including benefits such as ease of use, flexibility, etc.
Question 2

Question #2: How would you detect bogus Instagram accounts used for scamming consumers?

How to answer
How to answer: Questions like this one allow an employer to test your problem-solving skills. When answering open-ended questions such as these, feel free to ask clarifying questions and use whiteboards to demonstrate your coding and diagramming skills. Share your thought process as you work through the problem.
Question 3

Question #3: Describe circumstances that require a list, tuple, or set in Python.

How to answer
How to answer: Interviewers will use questions such as this one to test your Python programming skills. Review Python basics such as lists, tuples, and sets before your interview. You should be able to explain when and how each tool is used by data scientists.

54,359 data scientist interview questions shared by candidates

How your skills would apply to the position, how you have exemplified various Pfizer values (joy, courage, excellence, equity). What your own goals and values are. Describe a time where you... failed, had conflict, learned something new, etc.
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Senior Associate Scientist

Interviewed at Pfizer

3.7★
Dec 29, 2022

How your skills would apply to the position, how you have exemplified various Pfizer values (joy, courage, excellence, equity). What your own goals and values are. Describe a time where you... failed, had conflict, learned something new, etc.

Puzzles: 1. there are 10 bottles containing coins of 1 gram each. Of the 10, 1 bottle contains coins of 1.1 gram. We have to find out that 1 bottle after only 1 measurement. 2.There is a cylindrical glass filled with water. We have to determine if it is EXACTLY(not approximately) half-filled or not. We can't measure the water, nor can we dip anything in water, or measure the height of glass. We have to just look (may be hold) and tell. HR questions:- 1. What would you want to be if you were a traffic sign? 2. What would you do if you had 6 months left before you die? Why would you do that?
avatar

Data Scientist

Interviewed at LatentView Analytics

3.8★
Oct 17, 2014

Puzzles: 1. there are 10 bottles containing coins of 1 gram each. Of the 10, 1 bottle contains coins of 1.1 gram. We have to find out that 1 bottle after only 1 measurement. 2.There is a cylindrical glass filled with water. We have to determine if it is EXACTLY(not approximately) half-filled or not. We can't measure the water, nor can we dip anything in water, or measure the height of glass. We have to just look (may be hold) and tell. HR questions:- 1. What would you want to be if you were a traffic sign? 2. What would you do if you had 6 months left before you die? Why would you do that?

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