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StatisticsProduct Case

2 years ago

If you give N users a 5$ coupon, with the probability of usage being P, what is the expected coupon spend? What assumptions would you make to underpin that answer? What is the probability that one of the coupons will be used?

Data Scientist

Walmart

Deliveroo

Booking.com

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2 years ago

Behavioral

2 years ago

You observe that a colleague always arrives late to a weekly meeting. What would you do?

Data ScientistProduct ManagerBackend EngineerTechnical Program Manager

Walmart

MPL

Commvault

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2 years ago

Statistics

2 years ago

How do you demystify regression for an audience unfamiliar with statistical terminology?

Data Scientist

Walmart

Snowflake

Dollar Shave Club

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2 years ago

ML Knowledge

2 years ago

Can you elaborate on the BERT structure and why it's better than the BiLSTM in practical applications?

Data Scientist

Walmart

DataRobot

LiveRamp

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2 years ago

ML Knowledge

2 years ago

Can you discuss the convergence of stochastic gradient descent (SGD) and its advantages over gradient descent?

Data Scientist

Walmart

Zillow

ByteDance

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2 years ago

Behavioral

2 years ago

Tell me about a time when you assisted a colleague in his work.What was the result?

Data ScientistFull Stack Software EngineerProduction EngineerFrontend Engineer

Walmart

Palantir Technologies

Rebel Foods

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2 years ago

Behavioral

2 years ago

How would you measure success?

Data ScientistFull Stack Software EngineerProgram ManagerFrontend Engineer

Walmart

Faire

Databricks

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2 years ago

Product CaseML Case

2 years ago

How would you predict Samsung Phone sales? What about predicting churn rate? What recall metric would you use?

Data Scientist

Walmart

Rakuten

thredUP

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2 years ago

Behavioral

2 years ago

If you were able to change something about Walmart, what would it be?

Data Scientist

Walmart

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2 years ago

ML KnowledgeML Case

2 years ago

Is the R-square measure sufficient for linear regression analysis? What if the r-square value is low, does this mean that the fit is not good enough?

Data Scientist

Walmart

Bloomberg

HubSpot

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2 years ago

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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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