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

Data Science Interview Questions

Questions Answers Views Company eMail

What are the types of business decisions?

339

What is root Linear Regression analysis?

363

What are generators in Python?

3 933

What is a data science job?

425

Which objects are iterated in python?

385

How long does it take to become a data scientist?

451

How to create survival object in R?

565

What do you mean by survival analysis in R?

419

Name the methods for General component analysis and explain them?

394

Which one you prefer R or Python for text analytics?

405

Explain how to merge data frames in R?

331

What are distance measures in R statistics?

398

What are independent graphics subsystems?

421

What is correlation in R?

391

Explain calculate distance methods briefly?

319

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Un-Answered Questions { Data Science }

How different is a mean value different from expected value?

421

Explain recommender system?

331

What are the major skills data scientist need?

308

Explain how to write a table to a file?

382

How do you do data import in sas?

341

How do you handle missing values in python or r?

315

What is an example of a data set with a non-gaussian distribution?

331

Which database is best for data science?

329

You have two tables-the first table has data about the users and their friends, the second table has data about the users and the pages they have liked. Write an SQL query to make recommendations using pages that your friends liked. The query result should not recommend the pages that have already been liked by a user.

426

What is a jupyter notebook?

362

What is term Pearson’s Correlation Coefficient?

370

How to choose the right chart in case of creating a viz?

315

What is chi-square tests?

373

Define power analysis?

340

What exactly does a data scientist do?

360

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