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?

308

Explain supervised learning?

326

Explain the difference between an analyst and a data scientist?

306

Explain the differences between univariate and multivariate analysis?

419

Explain data preparation?

304

Explain the differences between univariate and bivariate analysis?

315

Define power analysis?

329

Explain systematic sampling?

311

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

306

Define data discretization?

283

Which database is best for data science?

322

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Un-Answered Questions { Data Science }

What is term Pearson’s Correlation Coefficient?

365

Explain calculate distance methods briefly?

313

How to work towards a random forest?

419

A disc is spinning on a spindle and you don't know the direction in which way the disc is spinning. You are provided with a set of pins.How will you use the pins to describe in which way the disc is spinning?

435

Check whether a given integer is a palindrome or not without converting it to a string.

383

Can you cite some examples where a false negative important than a false positive?

355

Define convex hull?

316

How can you iterate over a list and also retrieve element indices at the same time?

331

How do you use sql in sas, python, r languages?

342

Can you explain root cause analysis?

304

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

392

What is market basket analysis?

367

How can you generate a random number between 1 – 7 with only a die?

585

What is linear optimization?

313

Define a sql query?

330

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