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 major skills data scientist need?

308

In k-means or knn, we use euclidean distance to calculate the distance between nearest neighbors. Why not manhattan distance?

424

Can you explain cross-validation?

294

Can you explain data cleansing?

327

What is the difference between an analyst and a data scientist?

339

What do you understand by type I vs type ii error?

349

Can you explain supervised learning?

314

How do you understand by bias variance trade off?

334

Can you explain data munging or data wrangling?

323

What is difference between sas, r and python programming?

380

Can you define feature vector?

314

What is data scientist?

357

What is the advantage of performing dimensionality reduction before fitting an svm?

305

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

322

Can you define data discretization?

270

Post New Data Science Questions

Un-Answered Questions { Data Science }

Which laptop is best for data analysis?

357

what is bias?

357

Do gradient descent methods always converge to same point?

344

What is meant by supervised and unsupervised learning in data?

321

What is the difference between an iterator, generator and list comprehension in Python?

359

Can you define convex hull?

362

How make you 3d plots/visualizations using numpy/scipy?

403

Implement a sorting algorithm for a numerical dataset in Python.

353

Define a/b testing?

377

What is selection bias?

339

What is meant by linear regression?

309

What is systematic sampling?

329

Can you explain cross-validation?

294

Explain the differences between univariate and multivariate analysis?

434

Given 2 vectors, how will you generate a sorted vector?

329

For More Un-Answered { Data Science } Questions Click Here