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SQL

4 years ago

Imagine you were presenting this data to a group of stakeholders - how would you demonstrate the differences between the data in the first half of the columns versus the second half?

Data Scientist

Amazon Web Services

Walmart

GitHub

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4 years ago

Coding

4 years ago

Show me how you'd write a function to generate a bell curve with random data and graph it.,

Data Scientist

Amazon Web Services

VMware

Airbnb

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4 years ago

Statistics

4 years ago

Could you calculate the odds of correctly identifying a random card from a full deck?

Data Scientist

Amazon Web Services

Monzo

MongoDB

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4 years ago

Coding

4 years ago

Can you devise a method to transform a character array from a minesweeper grid into an integer array of adjacent mine counts?

Data ScientistMachine Learning Engineer

Amazon Web Services

DataRobot

Zoox

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4 years ago

ML Knowledge

4 years ago

What is the difference between k-means and k nearest neighbor (KNN).

Data Scientist

Amazon Web Services

AppDynamics

Convoy

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4 years ago

Statistics

4 years ago

If you had a chance to guess a randomly selected card from a deck, what's your probability of getting it right? And if you could ask if it's red or a face card to better your odds, which question would you pose?

Data Scientist

Amazon Web Services

Hewlett Packard

Datadog

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4 years ago

ML Knowledge

4 years ago

Could you explain how the K-means and Expectation-Maximization (EM) algorithm differ in their approaches?

Data Scientist

Amazon Web Services

Stripe

Amgen

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4 years ago

ML Knowledge

4 years ago

What's the procedure for a 1D CNN to analyze sequential data?

Data Scientist

Amazon Web Services

Motorola Solutions

Ancestry

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4 years ago

Statistics

4 years ago

Write a function that draws N samples from a population with mean = 0, SD = 1 and plot the histogram.

Data Scientist

Amazon Web Services

Chegg

Chewy

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4 years ago

Behavioral

4 years ago

What's the usual workflow for a Data Science project, from its kickoff to its wrap-up?

Data Scientist

Amazon Web Services

Ironclad

American Express

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4 years ago

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

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