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

Data Science Interview Questions

Questions Answers Views Company eMail

Explain the difference between a test set and a validation set?

276

Explain supervised learning?

291

Explain the difference between an analyst and a data scientist?

278

Explain the differences between univariate and multivariate analysis?

377

Explain data preparation?

271

Explain the differences between univariate and bivariate analysis?

286

Define power analysis?

289

Explain systematic sampling?

282

Explain the difference between data science, machine learning and artificial intelligence?

280

Define data discretization?

255

Which database is best for data science?

292

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Un-Answered Questions { Data Science }

Explain recommender systems?

317

What is logistic and linear regression?

302

Explain the two main components of the hadoop framework?

312

From a long sorted list and a short 4 element sorted list, which algorithm will you use to search the long sorted list for 4 elements.

302

Why is data munging useful?

264

Describe the data analysis process.

353

What does the future hold for data scientists?

312

What do you understand by parametric and non-parametric methods? Explain with examples.

289

Explain auto-encoder

286

Give some situations where you will use an SVM over a RandomForest Machine Learning algorithm and vice-versa?

428

Pycharm has a debugger?

426

Can you explain the difference between a Test Set and a Validation Set?

301

What is cluster sampling?

385

Explain about string parsing in R language

302

What packages are used for data mining in python and r?

309

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