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SQL
9 months ago
How do you compute the rolling average of a metric across a set period of time?
Data Scientist

Medallia

Riot Games

Expedia

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9 months ago
Behavioral
9 months ago
What makes you want to join Medallia?
Data Scientist

Medallia

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9 months ago
ML Knowledge
10 months ago
In determining how well a model is performing, the AUC is an essential metric. Could you explain the process of calculating the AUC for a model?
Data Scientist

Medallia

Deloitte Logo

Deloitte

Virta Logo

Virta

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10 months ago
ML KnowledgeML Case
10 months ago
Can you detail your experience in the field of NLP and the creation of recommender systems?
Data Scientist

Medallia

Rakuten Logo

Rakuten

Cisco Logo

Cisco

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10 months ago
StatisticsCoding
10 months ago
Explain the concept of percentiles in statistics, and how you would go about finding the nth percentile of a dataset? Can you write a code for finding the nth percentile of a dataset.
Data Scientist

Medallia

Ticketmaster Logo

Ticketmaster

Robinhood Logo

Robinhood

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10 months ago
SQL
10 months ago
What SQL statement would you use to select entries that begin with the letter 'H'?
Data Scientist

Medallia

American Express Logo

American Express

Zendesk Logo

Zendesk

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10 months ago
ML Knowledge
10 months ago
When we talk about decision trees, how do we consider bias and variance? And, if you wouldn't mind, which do you think is more challenging: high bias or high variance, and give us an explanation for that assertion?
Data Scientist

Medallia

Elastic Logo

Elastic

Rivian Logo

Rivian

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10 months ago
Behavioral
10 months ago
Tell me about a community that you care about? And if you had a chance to contribute, how would you do it?
Data ScientistProduct ManagerBackend EngineerTechnical Program Manager

Medallia

eBay Logo

eBay

GlobalBees Logo

GlobalBees

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10 months ago
Coding
10 months ago
How would you go about finding all possible triplets in an integer array that add up to a specified target value?
Data Scientist

Medallia

Amazon Web Services Logo

Amazon Web Services

Criteo Logo

Criteo

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10 months ago
Coding
a year ago
How do you design a function to perform specific transformations on a pandas dataframe?
Data Scientist

Medallia

Monzo Logo

Monzo

Commvault Logo

Commvault

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a year ago

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