How do I approach Machine Learning interview questions?

Machine Learning questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master machine learning interviews.

What difficulty level is this interview question?

This is a easy difficulty Machine Learning question, commonly asked during Technical Screen rounds at Bnp.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Bnp during technical interviews.

What are linear regression assumptions?

Last updated: Mar 29, 2026

Quick Overview

Assesses understanding of the assumptions underlying ordinary least squares linear regression and the application of diagnostic methods to ensure unbiased parameter estimates and valid statistical inference.

easy
Bnp
Machine Learning
Data Scientist

Bnp

Jan 5, 2026, 12:00 AM

Data Scientist

Technical Screen

Machine Learning

You fit an ordinary least squares (OLS) linear regression model.

What are the key assumptions behind OLS (for unbiasedness and for valid inference)?
How would you diagnose common violations?
What are typical mitigations if assumptions fail?

Solution

Show

Submit Your Answer

Loading comments...

Browse More Questions

More Machine Learning•More Bnp•More Data Scientist•Bnp Data Scientist•Bnp Machine Learning•Data Scientist Machine Learning