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Statistics
4 years ago
What is the probability that four people on an elevator will depart on different floors assuming a four-story building?
Data Scientist

HelloFresh

Snap

Rivian

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4 years ago
Behavioral
4 years ago
What are your short-term goals and how do they relate to your long-term goals?
Data ScientistFrontend EngineerProgram ManagerFull Stack Software Engineer

HelloFresh

SurveyMonkey

Unity Technologies

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4 years ago
StatisticsCoding
4 years ago
Can you explain the concept of percentiles and demonstrate how to determine the nth percentile in a dataset? Would you be able to write a code for that?
Data Scientist

HelloFresh

Ticketmaster Logo

Ticketmaster

Robinhood Logo

Robinhood

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4 years ago
Statistics
4 years ago
How would you explain the concept of regression to a non-statistical professional?
Data Scientist

HelloFresh

Snowflake Logo

Snowflake

Dollar Shave Club Logo

Dollar Shave Club

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4 years ago
ML Knowledge
4 years ago
Can you discuss the convergence of stochastic gradient descent (SGD) and its advantages over gradient descent?
Data Scientist

HelloFresh

Zillow Logo

Zillow

ByteDance Logo

ByteDance

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4 years ago
Analytics Case
4 years ago
If a product's usage metrics take a hit leading up to its launch, what steps would you recommend taking?
Data Scientist

HelloFresh

Gusto Logo

Gusto

GoCardless Logo

GoCardless

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4 years ago
Coding
4 years ago
Can you develop a function to find the longest path within a Directed Acyclic Graph?
Data ScientistMachine Learning Engineer

HelloFresh

Scribd Logo

Scribd

Plaid Logo

Plaid

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4 years ago
Statistics
4 years ago
In simple terms, how would you explain the concept of Markov Chains?
Data Scientist

HelloFresh

Yelp Logo

Yelp

Skyscanner Logo

Skyscanner

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4 years ago
ML Knowledge
4 years ago
What can you tell me about the efficiency of SVM training in terms of time complexity? Could you explain the time efficiency of inference with a trained SVM model? Could you describe how kernel selection (Linear vs RBF) affects the time complexity of SVMs?
Data Scientist

HelloFresh

Nokia Logo

Nokia

Adobe Logo

Adobe

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4 years ago
ML Knowledge
4 years ago
Could you elaborate on the qualities that differentiate neural networks from support vector machines, and what kinds of issues they are each suited to tackle?
Data Scientist

HelloFresh

Infineon Logo

Infineon

SAP Concur Logo

SAP Concur

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4 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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