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Statistics

5 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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5 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

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

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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

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

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

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

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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