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

Data Science Interview Questions

Questions Answers Views Company eMail

Define convex hull?

316

Write the formula to calculate r-square?

350

Explain k-mean?

307

Explain recommender system?

319

Explain the two main components of the hadoop framework?

337

Define analytics?

319

Explain the difference between data modeling and database design?

318

Define data reduction?

279

Explain data munging or data wrangling?

290

Define linear regression?

321

Define feature vector?

366

Explain the difference between sas, r and python programming?

318

Explain data cleansing?

325

Explain the differences between univariate, bivariate and multivariate analysis?

300

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

328

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Un-Answered Questions { Data Science }

What are eigenvalue and eigenvector?

347

Have you used sampling? What are the various types of sampling have you worked with?

316

Why is resampling done?

310

Is 8gb ram enough for data analysis?

391

Will Uber cause city congestion?

415

What is machine learning and how can it be used for time series analysis?

288

What is the supervised learning?

336

What are generators in Python?

910

Which companies participating in Insight would you be interested in working for?

334

What does Machine Learning mean for the Future of Data Science?

350

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

321

Could you explain how to define the number of clusters in a clustering algorithm?

319

What is the importance of having a selection bias?

312

What is chi-square tests?

367

Define cluster sampling?

323

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