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Uber Decision Scientist Interview Questions and Answers
Uber Decision Scientist Interview Experiences
2 interviews found
Anonymous
Selected
I applied via Referral and was interviewed before Jan 2023. There were 5 interview rounds.
Generally 90 min coding test with 3 SQL questions
(1 Question)
- Q1. Advanced SQL - basic stats
(1 Question)
- Q1. SQL + Statistics
(1 Question)
- Q1. Python + SQL + Stats
(1 Question)
- Q1. Advanced Statistics
Interview Preparation Tips
1. Advanced SQL questions were asked - Window functions and CTEs
2. Advanced Statistics: XPs, Significance tests, everything about normal distribution etc.
Sarmili Mondal
I applied via LinkedIn and was interviewed in Sep 2024. There was 1 interview round.
(1 Question)
- Q1. Describe your project
- Ans.
Developed a predictive model to forecast customer churn for a telecom company
Collected and cleaned customer data including demographics, usage patterns, and customer service interactions
Used machine learning algorithms such as logistic regression and random forest to build the predictive model
Evaluated model performance using metrics like accuracy, precision, recall, and ROC curve
Provided actionable insights to the com
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Decision Scientist Interview Questions & Answers
Amazon
ROSHIN JACOB JOHNSON me12b166
posted on 2 Dec 2016
I applied via campus placement at Indian Institute of Technology (IIT), Chennai and was interviewed in Dec 2016. There were 6 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Most challenging problem you have solved or tried solving
- Ans.
Developing a predictive model for customer churn in a telecom company
Gathering and cleaning large amounts of customer data
Identifying key predictors of churn through statistical analysis
Building and testing various machine learning models
Iteratively refining the model to improve accuracy
Presenting findings and recommendations to stakeholders
- Q2. Few simple puzzles and guestimates
Interview Preparation Tips
Experience: Quant questions and basic programming
Duration: 45 minutes
Total Questions: 28
Round: Case Study Interview
Experience: Simple question. Just keep on telling what comes to your mind.
College Name: IIT Madras
(2 Questions)
- Q1. Tell me about your projects?
- Q2. How do you approach the project if you are using logistic regression model?
- Ans.
Approach involves data preprocessing, model training, evaluation, and interpretation.
Perform data preprocessing such as handling missing values, encoding categorical variables, and scaling features.
Split the data into training and testing sets.
Train the logistic regression model on the training data.
Evaluate the model using metrics like accuracy, precision, recall, and F1 score.
Interpret the model coefficients to under...
(2 Questions)
- Q1. What are you future goals?
- Q2. What would you do if your interested field doesnt have any work in the company?
- Ans.
I would seek opportunities to apply my skills in related fields within the company.
Explore other departments or teams within the company that may have projects related to my field of interest
Offer to collaborate with colleagues in different departments to bring a new perspective to their projects
Seek out professional development opportunities to expand my skills and knowledge in related areas
Skills evaluated in this interview
(2 Questions)
- Q1. Basic Recommendation System Questions
- Q2. A B Testing Questions
I applied via campus placement at Birla Institute of Technology and Science (BITS), Pilani and was interviewed in Dec 2023. There were 2 interview rounds.
The first round was a 45 min long aptitude and case study round which involved basic aptitude questions along with certain cases like "There has been a drop off in customers booking a hotel though the the total number of visits to the site has not dropped. How would you you design a system to analyze the problem and what kind of data will you collect." It was followed by a couple of HR questions
A mock data set of hotel bookings in different countries for last two years were given a week prior to the interview. We were to clean, prepare, derive insights and recommend actions. All of this needed to be documented as 15 page presentation. This presentation then needed to be presented in a 45 min meet.
Interview Preparation Tips
SQL - shared question on the screen and asked to code in SQL
(1 Question)
- Q1. Nth highes salary
I applied via LinkedIn and was interviewed before Jun 2023. There was 1 interview round.
SQL test on hackerrank
Interview Preparation Tips
I applied via Referral and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. SQL and pandas coding
- Q2. Resume projects deep dive
Interview Preparation Tips
Selected
I applied via Company Website and was interviewed before Dec 2023. There were 3 interview rounds.
Categories of the CAT exam include Quantitative Aptitude, Verbal Ability, Data Interpretation and Logical Reasoning, and Graphical questions.
Medium level. Focus on SQL subqueries application.
(2 Questions)
- Q1. Statistical questions related to different hypothesis testing
- Q2. Questions related to different machine learning model
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