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

Data Science Interview Questions

Questions Answers Views Company eMail

Which technique is used to predict categorical responses?

392

How to check the frequency distribution of a categorical variable?

328

What is collaborative filtering in data science?

360

Pycharm has a debugger?

426

How can you check if a data set or time series is random?

315

Which method in pandas.tools.plotting is used to create scatter plot matrix?

390

What is pylab?

374

What is the science of data in simple words?

307

How will you drop variables using indices in a data frame?

337

What is the difference between cluster and systematic sampling?

294

How will you check if an element 25 is present in a vector?

389

What are disadvantages of bootstrap development?

329

What jupyter used?

269

What does a data scientist do?

361

What’s the difference between pip and pip3?

343

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Un-Answered Questions { Data Science }

What is linear optimization? Where is it used?

301

What is systematic sampling?

296

How does data cleaning plays a vital role in the analysis?

350

What packages are used for data mining in python and r?

309

Please explain gradient descent?

304

How many sorting algorithms are available?

346

What is the differences between univariate, bivariate and multivariate analysis?

325

Can you define cluster sampling?

348

How often should an algorithm be updated?

286

What is the central limit theorem? How is a normal distribution different from chi square distribution?

308

What is pylab?

374

What are interpolation and extrapolation?

306

What are outlier values?

387

Define a/b testing?

336

Define power analysis?

289

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