Data Scientist Trainee Interview Questions

40,238 data scientist trainee interview questions shared by candidates

Bayes' Formular: Marbles: There are 30 red marbles and 10 black marbles in Urn #1. You have 20 red and 20 Black marbles in Urn 2. Randomly you pull a marble from the random urn and find that it is red. What is the probability that it was pulled from Urn #1
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Data Scientist

Interviewed at Zenefits

3.8
Dec 17, 2016

Bayes' Formular: Marbles: There are 30 red marbles and 10 black marbles in Urn #1. You have 20 red and 20 Black marbles in Urn 2. Randomly you pull a marble from the random urn and find that it is red. What is the probability that it was pulled from Urn #1

There are two players, A and B playing a game with a single fair coin. If the coin flips two heads in a row, then player A wins. If the coin flips a tails and then a heads right after each other, player B wins. The coin is flipped sequentially until either player A or player B wins, and the game is reset. Which player, if any, would you bet on and why?
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Data Scientist

Interviewed at Upstart

4
Apr 21, 2020

There are two players, A and B playing a game with a single fair coin. If the coin flips two heads in a row, then player A wins. If the coin flips a tails and then a heads right after each other, player B wins. The coin is flipped sequentially until either player A or player B wins, and the game is reset. Which player, if any, would you bet on and why?

For the first round audio interview: 1. multicollinearity 2. decision trees 3. end-to-end method for deep learning on a genomic dataset For the video interview: 1. what is the most challenging aspect of data science projects for you 2. describe projects on resume 3. how do you communicate
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Data Science Intern

Interviewed at Illumina

3.4
Feb 5, 2021

For the first round audio interview: 1. multicollinearity 2. decision trees 3. end-to-end method for deep learning on a genomic dataset For the video interview: 1. what is the most challenging aspect of data science projects for you 2. describe projects on resume 3. how do you communicate

15 mins with an HR Recruiter followed by 1 Hour Technical Interview with 3 Data Scientist's - Case Studies on Sales Prediction. The interviewers were knowledgeable and the questions they asked were relevant to the intern job requirements.
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Data Science Intern

Interviewed at Take-Two

3.7
Jan 11, 2021

15 mins with an HR Recruiter followed by 1 Hour Technical Interview with 3 Data Scientist's - Case Studies on Sales Prediction. The interviewers were knowledgeable and the questions they asked were relevant to the intern job requirements.

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