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ML Knowledge
3 years ago
How do the K-means algorithm and the Expectation-Maximization (EM) algorithm contrast with each other?
Data Scientist

Walmart

Chewy

Wayfair

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3 years ago
Analytics Case
3 years ago
E, F, G, H, and I are all characters linked together. E is linked to F, E is linked to G, G is linked to H, G is linked to I. Can these characters be separated into two sets so that the graph will be a bipartite?
Data Scientist

Walmart

Postmates

HubSpot

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3 years ago
Behavioral
3 years ago
What are your thoughts on Walmart?
Data Scientist

Walmart

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3 years ago
Behavioral
3 years ago
Share a time when you had a disagreement with a member of your team.
Data ScientistData Engineering ManagerEngineering ManagerUX Designer

Walmart

Dunzo Logo

Dunzo

Adyen Logo

Adyen

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3 years ago
Behavioral
3 years ago
What are the ways in which you can be effective by utilizing different communication styles?
Data ScientistBackend EngineerProduct ManagerTechnical Program Manager

Walmart

Festicket Logo

Festicket

CarDekho Logo

CarDekho

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3 years ago
ML Case
3 years ago
How would you build a model to detect problematic sellers on the Walmart marketplace? What methods would you use to evaluate its accuracy and measure its progress?
Data Scientist

Walmart

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3 years ago
SQL
3 years ago
Could you describe how you calculate the rolling average for a metric over a particular time length?
Data Scientist

Walmart

Riot Games Logo

Riot Games

Expedia Logo

Expedia

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3 years ago
Behavioral
3 years ago
If you have ever led a team, please share your experience
Data ScientistBackend EngineerProduct ManagerTechnical Program Manager

Walmart

Workiva Logo

Workiva

Udacity Logo

Udacity

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3 years ago
Behavioral
3 years ago
Tell me about a project you are very proud of? Why?
Data ScientistTechnical Program ManagerSoftware EngineerProduct Manager

Walmart

Illumina Logo

Illumina

Articulate Logo

Articulate

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3 years ago
ML System Design
3 years ago
Walk me through the steps involved in designing a podcast search engine that allows users to search for specific topics within transcripts of various shows.
Data Scientist

Walmart

Uber Logo

Uber

Asana Logo

Asana

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3 years ago

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Walmart logo

Walmart

Data Scientist

Prepare for Statistics interview at Walmart

Statistics
Walmart logo

Walmart

Data Scientist

Prepare for Metrics and Experimentation interview at Walmart

Metrics and Experimentation
Walmart logo

Walmart

Data Scientist

Prepare for ML / Modeling interview at Walmart

ML / Modeling
Walmart logo

Walmart

Data Scientist

Prepare for Problem Solving interview at Walmart

Problem Solving
Walmart logo

Walmart

Data Scientist

Prepare for SQL interview at Walmart

SQL
Walmart logo

Walmart

Data Scientist

Prepare for Resume Review interview at Walmart

Resume Review
Walmart logo

Walmart

Data Scientist

Prepare for Behavioral interview at Walmart

Behavioral

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*All interview questions are submitted by recent Walmart Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at Walmart.

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