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Statistics

2 years ago

What is meant by heteroscedasticity?

Data Scientist

Cognizant

Paytm

LogMeIn

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2 years ago

Behavioral

2 years ago

Do you find it difficult to manage your workload in your current position?

Data ScientistFull Stack Software EngineerFrontend EngineerQuality Assurance Engineer

Cognizant

Hired

Mailchimp

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2 years ago

ML Knowledge

2 years ago

What does the ROC curve depict and what insights does the AUC provide?

Data Scientist

Cognizant

Mailchimp

Microsoft

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2 years ago

ML Knowledge

2 years ago

How does the curse of dimensionality affect high-dimensional datasets, and what remedy would you apply?

Data Scientist

Cognizant

Groupon

New Relic

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2 years ago

ML Knowledge

2 years ago

How do you explain the distinction between bias and variance in machine learning?

Data Scientist

Cognizant

Avito

Mastercard

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2 years ago

Behavioral

2 years ago

What have you learned from a recent failure? How has this failure helped you to become a better Data Scientist?

Data Scientist

Cognizant

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2 years ago

StatisticsCoding

2 years ago

Can you explain the concept of percentiles and demonstrate how to determine the nth percentile in a dataset? Would you be able to write a code for that?

Data Scientist

Cognizant

Ticketmaster

Robinhood

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2 years ago

Behavioral

2 years ago

Describe a time when you were proven wrong

Data ScientistEngineering ManagerUX DesignerUX Researcher

Cognizant

nCino

Grab

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2 years ago

Analytics Case

2 years ago

Given pairs of characters, evaluate if all the characters could be split into two sets so that the graph is a bipartite

Data Scientist

Cognizant

Postmates

HubSpot

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2 years ago

ML Knowledge

2 years ago

Given that you have labels for your clustering problem, what steps would you take to assess the performance of the model?

Data Scientist

Cognizant

Bolt

Coursera

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2 years ago

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