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Statistics
6 months ago
What steps do you take to optimize your statistical model and reduce residuals?
Data Scientist

Mastercard

Amazon Web Services

Monzo

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6 months ago
Behavioral
6 months ago
What do you think would be your biggest challenge in the Mastercard Data Scientist role?
Data Scientist

Mastercard

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6 months ago
CodingStatistics
6 months ago
Can you create a shuffle function using a roll() function that guarantees an equal chance for each permutation?
Data Scientist

Mastercard

Udacity Logo

Udacity

Klarna Logo

Klarna

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

Mastercard

Monzo

Commvault Logo

Commvault

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6 months ago
Coding
6 months ago
What's the process for writing Python code that constructs a hash table?
Data Scientist

Mastercard

Cleo Logo

Cleo

Cruise Logo

Cruise

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6 months ago
ML Knowledge
6 months ago
What role does dimensionality reduction play in Machine Learning, and what approaches do practitioners typically take when working with high-dimensional data?
Data Scientist

Mastercard

Walmart Logo

Walmart

Viber Logo

Viber

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6 months ago
StatisticsML Knowledge
6 months ago
What are false positives and false negatives in statistical hypothesis testing, and why do they matter in research?
Data Scientist

Mastercard

Headspace Logo

Headspace

Yahoo Logo

Yahoo

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6 months ago
Behavioral
6 months ago
What are some of your key objectives from the Data Scientist role at Mastercard?
Data Scientist

Mastercard

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6 months ago
ML Knowledge
6 months ago
Can you discuss a specific project where you utilized dimensionality reduction techniques to effectively manage and analyze complex data?
Data Scientist

Mastercard

OpenDoor Logo

OpenDoor

Atlassian Logo

Atlassian

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6 months ago
Behavioral
6 months ago
What do you think are your top 3 personality traits that make you succeed? How do they align with Mastercard?
Data Scientist

Mastercard

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6 months ago

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

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