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,

316

What would you do to summarize a Twitter feed?

Microsoft,

319

What is data science?

323

What is the goal of A/B Testing?

334

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

412

What does the future hold for data scientists?

312

What is meant by Poisson regression?

338

What are essential skills and training needed in data Science?

311

Can you use machine learning for time series analysis?

297

What prior knowledge is required to become data scientist?

288

During analysis, how do you treat missing values?

374

Is it possible to perform logistic regression with Microsoft Excel?

352

How can outlier values be treated?

364

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

321

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

302

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Un-Answered Questions { Data Science }

Can you compare the validation set with the test set?

296

what is bias?

323

Can you provide examples for other computations in spark?

234

Do you have some knowledge of R - analyse a given dataset in R?

293

What is the svm algorithm?

366

How can you generate a random number between 1 – 7 with only a die?

546

Why we need ggplot?

406

What is logistic regression? Or state an example when you have used logistic regression recently?

318

How would you add value to the company through your projects?

353

What are the types of biases that can occur during sampling?

308

Why is resampling done?

286

What is logistic regression in data science?

404

How will you explain JOIN function in SQL to a 10 year old ?

345

What are big data and data science?

401

What will you do if removing missing values from a dataset cause bias?

328

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