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Data Science Interview Questions
Questions Answers Views Company eMail

What is the difference between select and update query?

338

What is association analysis?

280

How do you do for loops in python and r?

329

What is data science? How would you say it is similar or different to business analytics and business intelligence?

290

What is an outlier? How do you treat outlier data?

261

What is column storage?

316

How is random forests different from decision trees?

367

Name some kinds of graphs and explain how you would build them in python or r.

265

How do you do data import in sas?

287

What is churn? How would it help predict and control churn for a customer?

311

Which package is used to do data import in r and python? How do you do data import in sas?

292

What is clustering? What is the difference between kmeans clustering and hierarchical clustering?

344

What is advantage of using apply family of functions in r?

306

How do you use lambda in python?

308

What is the difference between kmeans clustering and hierarchical clustering?

368


Post New Data Science Questions

Un-Answered Questions { Data Science }

What do you do as a data scientist?

311


You own a clothing enterprise and want to improve your place in the market. How will you do it from the ground level ?

270


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

263


Have you used sampling? What are the various types of sampling have you worked with?

280


What is a document database?

358


How and by what methods data visualizations can be effectively used?

295


Define data reduction?

241


What are data science and analytic?

350


Case Study based questions - Cars are implanted with speed tracker so that the insurance companies can track about our driving state. Based on this new scheme what kind of business questions can be answered?

426


What is the difference between select and update query?

338


A jar has 1000 coins, of which 999 are fair and 1 is double headed. Pick a coin at random, and toss it 10 times. Given that you see 10 heads, what is the probability that the next toss of that coin is also a head?

1422


Python is enough for data science ?

303


Define feature vector?

333


What is association analysis?

280


What are independent graphics subsystems?

376