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?

437

How to check the frequency distribution of a categorical variable?

359

What is collaborative filtering in data science?

404

Pycharm has a debugger?

481

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

356

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

443

What is pylab?

428

What is the science of data in simple words?

347

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

373

What is the difference between cluster and systematic sampling?

330

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

427

What are disadvantages of bootstrap development?

372

What jupyter used?

308

What does a data scientist do?

403

What’s the difference between pip and pip3?

380

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Un-Answered Questions { Data Science }

Explain the goal of a/b testing?

336

Is 8gb ram enough for data analysis?

406

What prior subject is required to become a data analyst?

333

What is the difference between skewed and uniform distribution?

344

Explain k-mean?

317

What is the common perception of visualization?

293

How can you build and test a metric to compare ranked list of TV shows or Movies for two Netflix users?

566

How can the outlier values be treated?

384

What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression?

313

Can you provide examples for other computations in spark?

275

What are feature vectors?

342

Where is association analysis used?

377

How will you cut a circular cake into 8 equal pieces?

304

What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.

311

Can you explain the difference between a Test Set and a Validation Set?

341

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