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?

274

Explain supervised learning?

289

Explain the difference between an analyst and a data scientist?

276

Explain the differences between univariate and multivariate analysis?

371

Explain data preparation?

269

Explain the differences between univariate and bivariate analysis?

279

Define power analysis?

287

Explain systematic sampling?

277

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

277

Define data discretization?

253

Which database is best for data science?

288

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Un-Answered Questions { Data Science }

What is the procedure to check the cumulative frequency distribution of any categorical variable?

361

What is the 80/20 rule?

287

What is the svm algorithm?

360

What prior subject is required to become a data analyst?

288

What are the steps involved in analytics projects?

278

Explain the difference between Supervised and Unsupervised Learning through examples.

338

How do you use lambda in python?

317

How do data scientists use statistics?

289

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

357

How is random forests different from decision trees?

372

Explain the difference between bayesian estimate and maximum likelihood estimation (mle)?

294

Why do we need generators in Python?

394

What is selection bias and why does it matter?

293

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

303

What are the applications of data science?

330

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