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 do you understand by the term data science?

354

What do you understand by normal distribution?

495

Do you prefer python or r for text analytics?

326

Why is resampling done?

320

What is overfitting?

486

Where to seek help in case of discrepancies in tableau?

568

What are the feature vectors?

320

What do you understand by the selection bias? What are its various types?

330

What is selection bias and why does it matter?

325

What are numpy, scipy, and spark essential datatypes?

407

why is data cleaning important for analysis?

372

Can you compare the validation set with the test set?

336

Can you explain the difference between a validation set and a test set?

318

Differentiate between data modeling and database design?

329

What is the best programming language to use in data science?

365

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Un-Answered Questions { Data Science }

How and by what methods data visualizations can be effectively used?

344

Explain data wrangling?

344

Explain OLS in brief?

354

What is advantage of using apply family of functions in r?

353

what is prior probability and likelihood?

413

Count the total number of trees in United States.

335

How is data science different from data analytics?

344

Which is the best suitable language among python and r for text analytics?

343

In a given day, how many birthday posts occur on Facebook?

434

What is Survival Analysis?

345

How is data modeling different from database design?

313

How will you explain JOIN function in SQL to a 10 year old ?

396

What is the importance of selection bias?

343

Explain how to write a table to a file?

381

What are independent graphics subsystems?

421

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