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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,

358

Explain the difference between Supervised and Unsupervised Learning through examples.

Mu Sigma,

370

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,

363

How can you measure engagement with given Twitter data?

Twitter,

409


Post New Data Science Questions

Un-Answered Questions { Data Science }

What tools or devices help you succeed in your role as a data scientist?

359


Define some key performance indicators for the product

297


What are you employed pip?

344


When do you need to update the algorithm in data science?

333


Case Study based questions - Cars are implanted with speed tracker so that the insurance companies can track about our driving state. Based on this new scheme what kind of business questions can be answered?

465


What are the applications of data science?

385


There are 8 identical balls and only one of the ball is slightly heavier than the others. You are given a balance scale to find the heavier ball. What is the least number of times you have to use the balance scale to find the heavier ball?

333


How would you create a taxonomy to identify key customer trends in unstructured data?

402


Explain interpolation and extrapolation?

324


Explain eigenvalue and eigenvector

326


What are apis used for?

393


What is machine learning? What is the difference between supervised and unsupervised methods?

332


How many dentists are there in US?

405


Which is the standard data missing marker used in pandas?

356


Why do you want to work at this company as a data scientist?

316