Candidatei-me online. O processo levou 3 semanas. Fui entrevistado pela Lubrizol em out. de 2022
Entrevista
I applied online in early October and was invited to a technical interview with two data scientists about three weeks later. The overall vibe wasn't great as my interviewers looked visibly tired and unenthusiastic. It brought my confidence down.
Perguntas de entrevista [1]
Pergunta 1
What would you do if there were a few outliers in your data, versus if 20% of your data were outliers? Explain collinearity and why it's bad to a nontechnical audience.
Candidatei-me online. O processo levou 3 semanas. Fui entrevistado pela Lubrizol em set. de 2025
Entrevista
There will be two interviewers. One is data scientist, the other is senior data scientist. Whloe time is 1 hour. Data scientist will start with some basic questions from CV, including some details and also ask why company.
Perguntas de entrevista [1]
Pergunta 1
They ask what if n=30 but predictors=100. How to deal with this problem and asked tons of details.
Candidatei-me online. O processo levou 3 semanas. Fui entrevistado pela Lubrizol (Hazelwood, England) em mai. de 2019
Entrevista
Two stages: first is a technical interview with 1 person on the Data Science team, with questions mostly about statistical models, and the second is a very typical competency interview with 2 people.