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3 years ago

How would you create an A/B test that can measure the relative effectiveness of two product campaigns, with a desired 3% increase in effectiveness?

Data Scientist

Juul Labs

Bill.com

DeliveryHero

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3 years ago

Statistics

3 years ago

What is the difference between likelihood and probability?

Data Scientist

Juul Labs

LendingClub

NetApp

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3 years ago

Coding

3 years ago

How can you manually calculate the length of a sorted list with -1 as an out-of-range signal, avoiding the use of built-in commands?

Data Scientist

Juul Labs

Springboard

Faire

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3 years ago

Statistics

3 years ago

Can you think of an instance where using the mean instead of the median would give you more meaningful insights?

Data Scientist

Juul Labs

Onfido

Slack

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3 years ago

Statistics

3 years ago

What are type I & type II errors in hypothesis testing? Which one do you think is worse?

Data Scientist

Juul Labs

Scribd

DataRobot

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3 years ago

SQL

3 years ago

Could you present a design for a song information database, including tables, attributes, and their datatypes?

Data Scientist

Juul Labs

Discord

DigitalOcean

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3 years ago

Statistics

3 years ago

When drawing from a normal distribution with a mean of 0 and a standard deviation of 1 once per day, how many days do you expect it would take to draw a value higher than 2?

Data Scientist

Juul Labs

NVIDIA

Comcast

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3 years ago

ML Knowledge

3 years ago

How does the assumption of error in linear regression influence the accuracy of our models, and what does it entail?

Data Scientist

Juul Labs

DeliveryHero

Datadog

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3 years ago

ML Knowledge

3 years ago

What do the coefficients in a logistic regression indicate about the relationship between the predictors and the outcome?

Data Scientist

Juul Labs

Chegg

BetterUp

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3 years ago

ML CaseML Knowledge

3 years ago

What benchmarks do you utilize for measuring computer vision model performance?

Data Scientist

Juul Labs

Medallia

Google

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3 years ago

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

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