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Data Scientist Intern Interview Questions

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33,977 data scientist intern interview questions shared by candidates

How would you join and summarize these tables? If you had an app that recommends restaurants based on customer reviews (think yelp), how would your app make recommendations for new restaurants (for which there would be no reviews)?
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Senior Data Scientist

Interviewed at Flatiron Health

3.2★
Apr 12, 2021

How would you join and summarize these tables? If you had an app that recommends restaurants based on customer reviews (think yelp), how would your app make recommendations for new restaurants (for which there would be no reviews)?

There was a dataset example and the questions were around that problem. For example, the type of ML algorithm appropriate for that dataset, type of metrics should be used, supervised unsupervised and many other details. The questions were reasonable and the timing was also good. I ran out of time for the programming section. It should be easier for a very experienced programmer. The programming part required me to have a lot of practice beforehand and be very fast to develop my approach and implement it. Use Hackerrank for practice and preparation. I believe it can be very helpful.
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Data Scientist(S)- MI and AI

Interviewed at Ericsson

4★
Jun 22, 2019

There was a dataset example and the questions were around that problem. For example, the type of ML algorithm appropriate for that dataset, type of metrics should be used, supervised unsupervised and many other details. The questions were reasonable and the timing was also good. I ran out of time for the programming section. It should be easier for a very experienced programmer. The programming part required me to have a lot of practice beforehand and be very fast to develop my approach and implement it. Use Hackerrank for practice and preparation. I believe it can be very helpful.

1st round 10 ML Questions. 3 coding questions. Not sure if they want a Software Developer or a Data Scientist. Even google gives you easier question for a Software Engineering position, than Ericsson gives for their specialist "Data Science" position. If you donot want to hire people, please dont invite and stop wasting our time and yours as well.!
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Junior Data Scientist

Interviewed at Ericsson

4★
Mar 19, 2019

1st round 10 ML Questions. 3 coding questions. Not sure if they want a Software Developer or a Data Scientist. Even google gives you easier question for a Software Engineering position, than Ericsson gives for their specialist "Data Science" position. If you donot want to hire people, please dont invite and stop wasting our time and yours as well.!

First round: What data would you require if you when deciding whether to lend an auto finance to a customer? What are the different aspects you look at to decide the interest rate? I don't remember the case study questions but one was on health insurance pricing, the other was on call center and numbers of accounts to allocate at each one of them. I don't remember the third one.
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Data Scientist

Interviewed at American Credit Acceptance

2.9★
Mar 18, 2024

First round: What data would you require if you when deciding whether to lend an auto finance to a customer? What are the different aspects you look at to decide the interest rate? I don't remember the case study questions but one was on health insurance pricing, the other was on call center and numbers of accounts to allocate at each one of them. I don't remember the third one.

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