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Quora, Inc. Data Scientist Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 50 interview experiences · FREE TO READ

2.4 Rounds average
Average Typical difficulty
46% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at Quora, Inc..

Showing 3 of 50
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Quora, Inc.

Data Scientist

Analytics · more than a year ago

Mid Average Negative experience No offer 2 rounds
Interview process
Recruiter call Technical screen
Interview formats
Behavioral Technical

Had an initial call with the recruiter which was positive, covering my background and the role details. The subsequent round was with a data scientist. It began with discussing my experience and then moved to an A/B testing scenario, which I felt I handled well. We used a shared document to outline my thought process, starting with the general 5-6 steps of A/B testing and then diving deeper into each. However, I felt the interviewer was disengaged, often on their phone, and seemed annoyed when I tried to build rapport by asking about personal interests. While the role and company initially sounded appealing, this interview experience made me question if I'd want to proceed, even if offered the next stage.

Confirmed questions1 question
  • Walk me through the entire process of conducting an A/B test.
Quora, Inc. logo
Quora, Inc.

Data Scientist

Analytics

Entry Average Positive experience No offer 3 rounds
Interview process
Take home Phone screen Onsite
Interview formats
Technical Behavioral

I applied for a New Grad role on LinkedIn, and after a couple of weeks, I got a take-home assignment. A few days after submitting that, they set up a phone screen where they asked metric-related questions for about 45 minutes. About one to two weeks later, they scheduled an on-site interview which consisted of 4 back-to-back interviews. These covered data manipulation, metrics, problem-solving, statistics, and a behavioral interview with the hiring manager. Overall, the experience was pretty good, and the recruiters were really responsive. I liked most of the process except for the interview with the hiring manager; she seemed disengaged and like she just recited three memorized questions before leaving.

Confirmed questions3 questions
  • What metrics would you propose to assess this situation?
  • Can you identify the error in this data analysis?
  • What is your motivation for seeking employment at Quora?
Quora, Inc. logo
Quora, Inc.

Data Scientist

Analytics

Senior Average Positive experience No offer 3 rounds
Interview process
Recruiter call Phone screen Onsite
Interview formats
Technical Presentation

I had an HR informational chat, then a phone screen, and finally a virtual on-site interview. They sent me a study guide to help me prepare for the different parts of the interview, which was really helpful. I was super impressed with how quickly the recruiter got back to me, set up the interviews, and let me know the results. A couple of the sections felt a bit redundant, but overall, the content seemed relevant to the actual job.

Confirmed questions1 question
  • Can you explain experimental design?

Quora, Inc. Data Scientist Interview Questions

Quoted word for word from Quora, Inc. interview reports.

How would you efficiently sort two lists of sorted integers into one single list?

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If you draw from a standard normal distribution (X ~ N(0,1)) once a day, how many days, on average, will it take to get a value greater than 2?

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Can you print the elements of a matrix in a zig-zag pattern?

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Can you write a function that finds the best split for a decision tree regressor, specifically using the L2 loss?

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How can one increase T test power with large variance and low sensitivity, with respect to confidence intervals?

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Can you explain how to multiply numbers represented as strings, especially if they are very large?

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What hypothesis would you form when comparing two feed ranking algorithms?

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Which statistical test would you employ to compare the two feed ranking algorithms?

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What metrics would you use to define success for a feed ranking algorithm?

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Formats, difficulty and experience

Across all 50 Quora, Inc. interview reports.

Interview formats

Technical 44.4%
Behavioral 25%
Coding 18.5%
Case 7.4%
Presentation 2.8%

Interview difficulty

Easy 8%
Average 64%
Difficult 28%

Candidate experience

Positive 46%
Neutral 24%
Negative 30%