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Data Science Interview Questions
Questions Answers Views Company eMail

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

266

Explain supervised learning?

284

Explain the difference between an analyst and a data scientist?

269

Explain the differences between univariate and multivariate analysis?

362

Explain data preparation?

263

Explain the differences between univariate and bivariate analysis?

272

Define power analysis?

282

Explain systematic sampling?

272

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

271

Define data discretization?

250

Which database is best for data science?

282


Post New Data Science Questions

Un-Answered Questions { Data Science }

What are Random Forests?

295


What are the principal components?

306


Do you prefer python or r for text analytics?

275


What is chi square test?

283


What do you understand by the selection bias?

279


Estimate the number of square feet pizza's eaten in US each year.

305


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

260


Explain the difference between overfitting and underfitting?

329


How to work towards a random forest?

379


How to create survival object in R?

504


What is the best laptop for data science?

289


How do you overcome challenges to your findings?

327


Implementing pow function

312


Describe univariate, bivariate and multivariate analysis?

256


What is logistic and linear regression? Name some packages in r and python for building regression models.

289