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Metrics and Experimentation

3 years ago

How would you build and test a metric to compare two user's Netflix "recommended lists" of movie/tv show preferences?

Data Scientist

Transferwise

Square

Segment

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3 years ago

ML Knowledge

3 years ago

How do you handle imbalanced dataset?

Data Scientist

Transferwise

Ironclad

Blend

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3 years ago

SQL

3 years ago

Write an SQL query to find the average value of orders placed by customers located in the United States who have made at least 3 orders over the past month, by joining the "orders" and "customers" tables.

Data Scientist

Transferwise

Rakuten

Citrix

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3 years ago

ML Knowledge

3 years ago

Could you provide an overview of what outlier detection involves?

Data Scientist

Transferwise

Redfin

Affirm

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3 years ago

ML Knowledge

3 years ago

How do confusion matrix and ROC curve tools differ in their use for model evaluation, and when is each preferable?

Data ScientistMachine Learning Engineer

Transferwise

Udacity

Splunk

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3 years ago

Behavioral

3 years ago

Can you tell me about a time when you had multiple competing priorities? How did you handle it?

Data ScientistData Science ManagerML Engineering ManagerEngineering Manager

Transferwise

Medium

WeTransfer

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3 years ago

ML Knowledge

3 years ago

What is the principal distinction between the methodologies of linear and logistic regression?

Data Scientist

Transferwise

Robinhood

WorldRemit

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3 years ago

Statistics

3 years ago

In what way can you calculate the probability of a correct guess for a card drawn at random from a deck?

Data Scientist

Transferwise

Deliveroo

Riot Games

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3 years ago

SQL

3 years ago

Which is faster, joins or subqueries?

Data Scientist

Transferwise

trivago

eToro

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3 years ago

SQL

3 years ago

How would you form a SQL query to locate all rows with names starting with 'H'?

Data Scientist

Transferwise

American Express

Zendesk

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3 years ago

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

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