NielsenIQ Data Scientist Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 23 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at NielsenIQ.
NielsenIQ
Data Scientist
Mid Average Negative experience No offer 1 round
Interview process
Technical screen
Interview formats
Technical Coding
It was a quick 45-minute interview. They asked me about Python and statistics. There were supposed to be 3 interviewers, but only 2 showed up. One of the interviewers was really rude, sarcastically saying things like 'sure yeah good' if I gave a wrong answer. They asked me to turn on my camera but didn't turn theirs on. The other interviewer noticed the rude behavior and tried to ask questions genuinely, aiming not to make me feel bad.
Confirmed questions2 questions
- Questions related to Python
- Questions related to statistics
NielsenIQ
Data Scientist
Entry Average Positive experience No offer 2 rounds
Interview process
Technical screen Onsite
Interview formats
Coding Technical Behavioral
Had an online aptitude round where I was given a coding problem that was a regression problem and I had to improve the result. Then there were multiple choice questions from statistics and python. The time limit was 1 hour. Those who got selected had a personal interview. They asked GIS based questions like about kriging, topology etc.
Confirmed questions1 question
- Were there any advanced Statistics questions that were multiple choice?
NielsenIQ
Data Scientist Intern
Intern Difficult Positive experience No offer 2 rounds
Interview process
Technical screen Recruiter call
Interview formats
Technical Coding
It will be apti then technical round in the interview to select the candidate. It will be around 45 minutes question and answer and apti is going to be hard.
Confirmed questions1 question
- Can you explain a machine learning model you are familiar with?
NielsenIQ Data Scientist Interview Questions
Quoted word for word from NielsenIQ interview reports.
“What is the difference between K-means clustering and K-Nearest Neighbors (KNN)?”
Read reports →“What is the difference between PySpark and Pandas?”
Read reports →“What are Python data frames?”
Read reports →“What is the coefficient of variation?”
Read reports →“What is logistic Regression?”
Read report →“Can you tell me the difference between a decision tree and a random forest?”
Read report →“Could you define statistical correlation and covariance?”
Read report →“Can you explain hypothesis testing in Python and Statistics?”
Read report →“Which evaluation metrics would be appropriate for assessing the performance of the X AI algorithm?”
Read report →Formats, difficulty and experience
Across all 23 NielsenIQ interview reports.