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

Data Science Interview Questions

Questions Answers Views Company eMail

How make you 3d plots/visualizations using numpy/scipy?

349

What is the common perception of visualization?

255

Explain about the box cox transformation in regression models?

263

What is the law of large numbers?

298

What is the role of the activation function?

283

How are confidence intervals constructed and how will you interpret them?

282

Do we have different selection biases, if yes, what are they?

357

How do data scientists code in r?

289

Please explain eigenvectors and eigenvalues?

267

What do you mean by cluster sampling and systematic sampling?

246

What is a linear regression in data science?

306

Explain the role of activation function?

288

What is the central limit theorem and why is it important?

292

A certain couple tells you that they have two children, at least one of whom is a girl. What is the probability that they have two girls?

294

What are eigenvalue and eigenvector?

321

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Un-Answered Questions { Data Science }

Explain data wrangling?

313

What is an api? What are apis used for?

291

why is data cleaning important for analysis?

325

How have you overcome a barrier to finding a solution?

265

How can I become a data scientist?

315

Where to seek help in case of discrepancies in tableau?

531

What do you understand by type I vs type ii error?

307

Explain the decision tree algorithm?

340

What is t test?

296

Which plot will you use to access the uncertainty of a statistic?

285

What is back propagation?

285

What do you understand by ensemble learning?

314

How do data scientists code in r?

289

What do you understand by clustering?

268

How will you test a machine learning model for accuracy?

286

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