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 is meant by linear regression?

309

What do you understand by the selection bias?

317

What is machine learning? What is the difference between supervised and unsupervised methods?

333

How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.

341

What is logistic and linear regression?

349

How is bagging different from boosting?

374

What is an rdbms? Name some examples for rdbms? What is crud?

305

What is market basket analysis? How would you do it in r and python?

328

What is random forests?

348

How do you treat outlier data?

344

How would you say data science is similar or different to business analytics and business intelligence?

312

What is linear optimization?

322

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

351

Name some packages in r and python for building regression models.

317

What is f test?

429

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Un-Answered Questions { Data Science }

What do you understand by term hash table collisions?

315

What is the supervised learning?

347

How will you test a machine learning model for accuracy?

319

Can you compare the validation set with the test set?

336

How can you measure engagement with given Twitter data?

409

How is data modeling different from database design?

313

Pycharm has a debugger?

481

Differentiate between regression and classification algorithms?

325

What is a recommender system?

372

What does sas stand out to be the best over other data analytics tools?

333

What are data science and analytic?

414

How will you impute missing information in a dataset?

347

Explain auto-encoder

330

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

394

What is market basket analysis? How would you do it in r and python?

328

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