Data Science Interview Questions

40,365 data science interview questions shared by candidates

1. How would you decrease the chance of a false positive (type 1 error) in a hypothesis testing framework? 2. All ids appear in table_2. But table_1 has missing ids. Write a SQL query to find all missing ids. 3. Using only table1 find all missing ids. Assuming ids are a complete sequence from 10001:11000 and no repeating ids.
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Senior Data Scientist

Interviewed at Coupang

3.3
Oct 18, 2021

1. How would you decrease the chance of a false positive (type 1 error) in a hypothesis testing framework? 2. All ids appear in table_2. But table_1 has missing ids. Write a SQL query to find all missing ids. 3. Using only table1 find all missing ids. Assuming ids are a complete sequence from 10001:11000 and no repeating ids.

They asked about my CV, motivation, and career goals. In both interviews, I had to solve a study case related to insurance. During the second study case, they asked about how I would analyse data and what statistical distribution I would use. They asked about the differences between thenormal and gamma distributions.
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Graduate Data Scientist

Interviewed at Admiral Group

3.7
May 12, 2022

They asked about my CV, motivation, and career goals. In both interviews, I had to solve a study case related to insurance. During the second study case, they asked about how I would analyse data and what statistical distribution I would use. They asked about the differences between thenormal and gamma distributions.

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