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

Data Science Interview Questions

Questions Answers Views Company eMail

Which technique is used to predict categorical responses?

431

How to check the frequency distribution of a categorical variable?

354

What is collaborative filtering in data science?

398

Pycharm has a debugger?

475

How can you check if a data set or time series is random?

346

Which method in pandas.tools.plotting is used to create scatter plot matrix?

434

What is pylab?

420

What is the science of data in simple words?

343

How will you drop variables using indices in a data frame?

363

What is the difference between cluster and systematic sampling?

326

How will you check if an element 25 is present in a vector?

422

What are disadvantages of bootstrap development?

365

What jupyter used?

301

What does a data scientist do?

395

What’s the difference between pip and pip3?

372

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Un-Answered Questions { Data Science }

How do you build a custom function in python or r?

337

Can you explain eigenvalue and eigenvector?

338

What is a univariate analysis?

349

What is the difference between supervised and unsupervised methods?

369

What is the aim of a/b testing?

313

What are distance measures in R statistics?

391

Explain recommender system?

320

Define analytics?

320

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

426

Differentiate between supervised and unsupervised learning?

300

what is json and what is xml?

331

What is churn? How would it help predict and control churn for a customer?

356

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

359

What are the differences between overfitting and underfitting?

418

what is bias?

349

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