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

Data Science Interview Questions

Questions Answers Views Company eMail

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

310

Can you provide examples for other computations in spark?

268

Describe univariate, bivariate and multivariate analysis?

289

Can you enumerate the various differences between supervised and unsupervised learning?

316

what is the difference between extrapolation and interpolation?

352

How do you work towards a random forest?

315

If you had to choose between the programming languages r and python, which one would you use for text analytics?

393

What are the various steps involved in an analytics project?

328

What do you understand by linear regression and logistic regression?

382

Why data cleaning plays a vital role in the analysis?

381

What is a/b testing in data science?

338

Please explain recommender systems along with an application?

351

For linear regression, what are some of the assumptions a data scientist is most likely to make?

288

What is supervised learning?

299

Could you draw a comparison between overfitting and underfitting?

399

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Un-Answered Questions { Data Science }

What are apis used for?

387

Explain Data Science Vs Machine Learning?

335

How many sorting algorithms are available?

375

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?

457

Define the term deep learning?

329

Can you explain systematic sampling?

330

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?

327

How is data science different from data analytics?

338

How to check the frequency distribution of a categorical variable?

353

What are an eigenvalue and eigenvector?

312

Why do you need a for loop? How do you do for loops in python and r?

344

How is true positive rate and recall related? Write the equation.

317

Do you prefer python or r for text analytics?

319

How can you build and test a metric to compare ranked list of TV shows or Movies for two Netflix users?

557

How is random forests different from decision trees?

425

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