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

Data Science Interview Questions

Questions Answers Views Company eMail

You are given two tables- friend_request and request_accepted. Friend_request contains requester_id, time and sent_to_id and request_accepted table contains time, acceptor_id and requestor_id. How will you determine the overall acceptance rate of requests?

Facebook,

342

What would you do to summarize a Twitter feed?

Microsoft,

342

What is data science?

358

What is the goal of A/B Testing?

367

How will you define the number of clusters in a clustering algorithm?

442

What does the future hold for data scientists?

342

What is meant by Poisson regression?

374

What are essential skills and training needed in data Science?

342

Can you use machine learning for time series analysis?

330

What prior knowledge is required to become data scientist?

312

During analysis, how do you treat missing values?

403

Is it possible to perform logistic regression with Microsoft Excel?

377

How can outlier values be treated?

387

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

352

How can you iterate over a list and also retrieve element indices at the same time?

332

Post New Data Science Questions

Un-Answered Questions { Data Science }

Can you explain collaborative filtering?

447

What skills do you need to be a data analyst?

346

What are disadvantages of bootstrap development?

365

Which language is best for data science?

343

Explain the difference between data science and data analytics?

353

What’s the difference between pip and pip3?

372

Discuss 'naive' in a naive bayes algorithm?

348

What are the key elements of the statistical graphics?

341

How would you create a taxonomy to identify key customer trends in unstructured data?

395

List out the libraries in python used for data analysis and scientific computations?

310

Burn two ropes, one needs 60 minutes of time to burn and the other needs 30 minutes of time. How will you achieve this in 45 minutes of time ?

332

Given 2 vectors, how will you generate a sorted vector?

324

Why L1 regularizations causes parameter sparsity whereas L2 regularization does not?

412

What are interpolation and extrapolation?

335

Do you need a teacher to be a scientist?

323

For More Un-Answered { Data Science } Questions Click Here