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Data Science Interview Questions
Questions Answers Views Company eMail

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

319

Explain supervised learning?

339

Explain the difference between an analyst and a data scientist?

313

Explain the differences between univariate and multivariate analysis?

434

Explain data preparation?

311

Explain the differences between univariate and bivariate analysis?

330

Define power analysis?

339

Explain systematic sampling?

325

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

314

Define data discretization?

295

Which database is best for data science?

329


Post New Data Science Questions

Un-Answered Questions { Data Science }

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

314


What are data science and analytic?

414


What are eigenvectors and eigenvalues?

424


What does _init_.py do?

418


You created a predictive model of a quantitative outcome variable using multiple regressions. What are the steps you would follow to validate the model?

345


Describe the various steps involved while carrying out an analytical project?

329


What skills do I need to be a data scientist?

337


What is meant by lattice graphs?

417


You are given a training dataset of users that contain their demographic details, the pages on Facebook they have liked so far and results of psychology test based on their personality i.e. their openness to like FB pages or not. How will you predict the age, gender and other demographics of unseen data?

339


What do you understand by normal distribution?

495


Is jupyter open source?

326


What is missing value imputation? How do you handle missing values in python or r?

353


Can you explain supervised learning?

314


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

343


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

352