Data Science Interview Questions

Welcome to MockInterview.co‘s Data Science Interview Questions library! (300+ questions & growing)

There are three things that you could do here:

  1. Prepare: You can browse through these questions set to prepare for your data science interviews.
  2. Ask questions: You are also invited to ask interview questions using the “Ask Question” button which you can find at the bottom of the question list.
  3. Post Answers: you can post your answers to get feedback from the community.

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Explain what is overfitting and how would you control for it
MockInterview asked 5 years ago • 
395 views0 answers0 votes
How can you prove that one improvement you've brought to an algorithm is really an improvement over not doing anything?
MockInterview asked 5 years ago • 
408 views0 answers0 votes
What is “data science” in your own words?
MockInterview asked 5 years ago • 
474 views1 answers0 votes
what are some techniques you can use to more accurately measure model prediction error?
MockInterview asked 5 years ago • 
601 views1 answers0 votes
Explain to the leaders of this company what model lift is and why they should care.
MockInterview asked 5 years ago • 
564 views0 answers0 votes
Describe a situation where you had to decide between two different types of analyses – and why you chose the one you did.
MockInterview asked 5 years ago • 
404 views0 answers0 votes
Describe an analysis you have recently completed, including strategies and findings. How were the findings used by the business?
MockInterview asked 5 years ago • 
349 views0 answers0 votes
What’s more important: predictive power or interpretability of a model?
MockInterview asked 5 years ago • 
752 views0 answers0 votes
How can outlier values be treated?
Paras asked 5 years ago • 
366 views0 answers0 votes
Can you describe a time when your data science project didn’t help your company? How did you handle the failure?
Paras Doshi asked 5 years ago • 
364 views0 answers0 votes
Let’s say you are working on a problem that needs you to predict whether a person will default on their loan or not — which algorithms will you pick and why?
Paras Doshi asked 5 years ago • 
349 views0 answers0 votes
Let’s say you want implement a movie recommendation engine on a website — what steps will you take?
Paras Doshi asked 5 years ago • 
562 views0 answers0 votes
What process do you use to understand a new data set?
paras asked 5 years ago • 
350 views0 answers0 votes
What is the biggest data set that you processed, and how did you process it?
MockInterview asked 5 years ago • 
369 views0 answers0 votes
Describe a project where you had to pick up a new technical skill? How did you learn it?
MockInterview asked 5 years ago • 
337 views0 answers0 votes
Give an example when you mentored someone else and help them succeed with data science? How did you go about doing it?
MockInterview asked 5 years ago • 
803 views0 answers0 votes
Why data cleaning plays a vital role in analysis?
Paras asked 5 years ago • 
766 views0 answers0 votes
What is logistic regression? Or State an example when you have used logistic regression recently.
Paras asked 5 years ago • 
456 views0 answers0 votes
What is your favorite data science project?
MockInterview asked 5 years ago • 
492 views0 answers0 votes
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