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ML Knowledge
3 years ago
Can you discuss the concept of bootstrapping and your view on its application for sample size enhancement?
Data ScientistMachine Learning Engineer
HelloFresh Logo

HelloFresh

Atlassian Logo

Atlassian

Dell Logo

Dell

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3 years ago
ML Knowledge
3 years ago
Can you explain why decision trees might be preferred over other machine learning techniques in certain situations, and vice versa?
Data Scientist
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HelloFresh

Robinhood Logo

Robinhood

Audible Logo

Audible

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3 years ago
ML Knowledge
3 years ago
What is entailed in developing a minimum height tree, and how is it accomplished?
Data Scientist
HelloFresh Logo

HelloFresh

Nubank Logo

Nubank

Hitachi Logo

Hitachi

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3 years ago
Statistics
3 years ago
How do panel data and cross sectional data differ from each other?
Data Scientist
HelloFresh Logo

HelloFresh

Lyft Logo

Lyft

Klarna Logo

Klarna

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3 years ago
Behavioral
3 years ago
Describe a time when you made an unpopular decision.
Data ScientistTechnical Program ManagerSoftware EngineerProduct Manager
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HelloFresh

Pristyn Care Logo

Pristyn Care

Ofbusiness Logo

Ofbusiness

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3 years ago
Metrics and Experimentation
3 years ago
When creating a metric to compare two user's Netflix recommended lists of movie/tv show preferences, what steps would you take to ensure its reliability and accuracy?
Data Scientist
HelloFresh Logo

HelloFresh

Square Logo

Square

Segment Logo

Segment

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3 years ago
Behavioral
3 years ago
Tell me about a conflict you have had to deal with.
Data ScientistTechnical Program ManagerSoftware EngineerProduct Manager
HelloFresh Logo

HelloFresh

Jabil Circuit Logo

Jabil Circuit

Zola Logo

Zola

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3 years ago
Statistics
3 years ago
Could you explain how to generate an ROC curve using a list of predicted probabilities and corresponding true labels?
Data Scientist
HelloFresh Logo

HelloFresh

IBM Logo

IBM

OfferUp Logo

OfferUp

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3 years ago
Statistics
3 years ago
How would you go about making a fair coin from a biased one?
Data Scientist
HelloFresh Logo

HelloFresh

ServiceNow Logo

ServiceNow

Oracle Logo

Oracle

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3 years ago
ML Knowledge
3 years ago
What are some alternative time series models to ARIMA that you are familiar with?
Data Scientist
HelloFresh Logo

HelloFresh

Benchling Logo

Benchling

Broadcom Logo

Broadcom

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3 years ago

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

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