Data Science Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Science Interview Questions

Questions Answers Views Company eMail

Develop an algorithm to sort two lists of sorted integers into a single list.

320

What are the different performance metrics for evaluating Uber services?

Uber,

327

Have you used sampling? What are the various types of sampling have you worked with?

WalMart,

322

What is the difference between an iterator, generator and list comprehension in Python?

WalMart,

363

Explain the difference between Supervised and Unsupervised Learning through examples.

Mu Sigma,

376

How many people are using Facebook in California at 1.30 PM on Monday?

Facebook,

427

Print the elements of a matrix in zig-zag manner.

322

What is the difference between a bagged model and a boosted model?

WalMart,

334

Which companies participating in Insight would you be interested in working for?

Insight,

341

You own a clothing enterprise and want to improve your place in the market. How will you do it from the ground level ?

Mu Sigma,

309

How many big Macs does McDonald sell every year in US?

Facebook,

320

A box has 12 red cards and 12 black cards. Another box has 24 red cards and 24 black cards. You want to draw two cards at random from one of the two boxes, which box has a higher probability of getting cards of same colour and why?

Goldman Sachs,

775

What is the probability of getting a HTT combination before getting a TTH combination?

Goldman Sachs,

314

How would add new Facebook members to the database of members, and code their relationships to others in the database?

Facebook,

364

How can you measure engagement with given Twitter data?

Twitter,

409

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Un-Answered Questions { Data Science }

How would you say data science is similar or different to business analytics and business intelligence?

312

What jupyter used?

310

How can outlier values be treated?

391

Explain Data Science Vs Machine Learning?

348

What is the difference between “long” and “wide” format data?

339

Name Methods to Calculate Distance Measure?

374

What is the correlation in r?

332

What is nosql? Name some examples of nosql databases.

371

How is data modeling different from database design?

318

What is the importance of selection bias?

343

what is bias?

357

Define boltzmann machine

320

Define data reduction?

293

Why do you want to work as a data scientist?

308

What is the difference between supervised and unsupervised methods?

384

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