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

Data Science Interview Questions

Questions Answers Views Company eMail

Discuss artificial neural networks

389

Is it possible to capture the correlation between continuous and categorical variable?

330

why do you need to perform resampling?

350

What is a random forest?

309

How to determine the number of clusters in k-means clustering algorithm?

303

Discuss linear regression?

328

Which is the best suitable language among python and r for text analytics?

343

Differentiate between supervised and unsupervised learning?

311

What do you understand by bias, variance trade-off?

333

Explain reinforcement learning.

301

What do you understand by l1 and l2 regularization methods?

322

What are the differences between data science, machine learning, and artificial intelligence?

336

What do you understand by clustering?

307

Differentiate between regression and classification algorithms?

327

Explain the decision tree algorithm?

406

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Un-Answered Questions { Data Science }

What is root Linear Regression analysis?

363

Explain while working on a data set, how do you select important variables?

343

Why is it mandatory to clean a data set?

381

What is the difference between Stack and Queue

510

What are the drawbacks of the linear model?

353

What is term Pearson’s Correlation Coefficient?

370

How will you test that there is increased probability of a user to stay active after 6 months given that a user has more friends now?

531

Why are generators used in Python?

397

What is meant by binomial distribution?

457

What is nosql? Name some examples of nosql databases. What is a key value store? What is column storage? What is a document database?

297

What is the central limit theorem? How is a normal distribution different from chi square distribution?

353

How do you check for data quality?

338

Explain why data cleansing is essential and which method you use to maintain clean data?

339

Explain k-mean?

319

What is the science of data in simple words?

347

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