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Behavioral
3 years ago
Tell me about a conflict you managed.
Data ScientistTechnical Program ManagerSoftware EngineerProduct Manager

Duolingo

Jabil Circuit

Zola

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3 years ago
Statistics
3 years ago
In skewed distributions, where do the mean and median fall compared to a normal distribution?
Data Scientist

Duolingo

Workday

CrowdStrike

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3 years ago
ML Knowledge
3 years ago
In your own words, how do you comprehend Neural Networks and their functionality?
Data ScientistMachine Learning Engineer

Duolingo

SeatGeek Logo

SeatGeek

Productboard Logo

Productboard

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3 years ago
ML Knowledge
3 years ago
Would you mind breaking down the interplay between bias and variance in machine learning and giving an example of how this tradeoff can emerge in a model's results?
Data Scientist

Duolingo

Asana Logo

Asana

Sprinklr Logo

Sprinklr

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3 years ago
ML Knowledge
3 years ago
What was your approach to removing multicollinearity from your predictive models?
Data Scientist

Duolingo

Nuro Logo

Nuro

ClassPass Logo

ClassPass

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3 years ago
Coding
3 years ago
Can you demonstrate a binary search implementation and its associated time complexity? Is there scope for optimization in your method?
Data Scientist

Duolingo

Bitdefender Logo

Bitdefender

Mailchimp Logo

Mailchimp

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3 years ago
Behavioral
3 years ago
How do you envision yourself in the next 5 years?
Data ScientistEngineering ManagerUX DesignerUX Researcher

Duolingo

DoorDash Logo

DoorDash

Instana Logo

Instana

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3 years ago
Statistics
3 years ago
What's your strategy for calculating the interquartile range from an unsorted list of decimals?
Data Scientist

Duolingo

LinkedIn Logo

LinkedIn

Groupon Logo

Groupon

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3 years ago
Behavioral
3 years ago
How would you describe yourself and why do you think that you should be hired by Duolingo?
Data Scientist

Duolingo

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3 years ago
Statistics
3 years ago
What are the situations where you consider mean over median?
Data Scientist

Duolingo

Onfido Logo

Onfido

Slack Logo

Slack

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3 years ago

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

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