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Statistics
2 years ago
Find expectations of a random variable with basic distribution. How would you construct a confidence interval? How would you estimate a probability of ordering a ride? What assumptions do you need in order to estimate this probability?
Data Scientist

Grubhub

Riot Games

N26

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2 years ago
Metrics and ExperimentationStatistics
2 years ago
When it comes to running an A/B test, what factors do you consider when determining the sample size needed for the test, and how do you decide whether the test results warrant implementing changes?
Data Scientist

Grubhub

EPAM Systems

Ola

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2 years ago
ML Knowledge
2 years ago
How would you describe LSTM to someone unfamiliar with it? Also, have you implemented LSTM in any of your machine learning projects?
Data Scientist

Grubhub

Lyft Logo

Lyft

Brex Logo

Brex

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2 years ago
ML Knowledge
2 years ago
What is the time complexity of training a support vector machine? Follow-ups: Time complexity of inference in SVM. Time complexity (both for training and inference) with depending on Kernel (Linear, RBF).
Data Scientist

Grubhub

Nokia Logo

Nokia

Adobe Logo

Adobe

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2 years ago
Analytics CaseProduct Case
2 years ago
Tell me about the relationship between early background checks and recruitment as observed in your A/B test.
Data Scientist

Grubhub

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2 years ago
Behavioral
2 years ago
What are some ways you use various styles of communication to be effective in sharing your perspectives?
Data ScientistBackend EngineerProduct ManagerTechnical Program Manager

Grubhub

Festicket Logo

Festicket

CarDekho Logo

CarDekho

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2 years ago
Behavioral
2 years ago
Describe a time when you assisted a colleague with his work. What happened as a result?
Data ScientistFull Stack Software EngineerProduction EngineerFrontend Engineer

Grubhub

Palantir Technologies Logo

Palantir Technologies

Rebel Foods Logo

Rebel Foods

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2 years ago
Statistics
2 years ago
Find the likelihood of selecting one red ball and one blue ball consecutively without returning the first pick, when there are 4 red balls and 2 blue balls available.
Data Scientist

Grubhub

Anaplan Logo

Anaplan

HelloFresh Logo

HelloFresh

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2 years ago
SQL
2 years ago
Take a look at the provided tables. Calculate the average delivery distance per agent and then sort them by total orders delivered in descending order.
Data Scientist

Grubhub

Zomato Logo

Zomato

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2 years ago
ML CaseML Knowledge
2 years ago
Can you explain the optimization techniques you have experience with?
Data Scientist

Grubhub

Babylon Health Logo

Babylon Health

Figma Logo

Figma

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2 years ago

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