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Data Science Interview Questions
Questions Answers Views Company eMail

What are the applications of data science?

332

What is the difference between data science, machine learning and artificial intelligence?

294

Can you define cluster sampling?

348

Can you explain systematic sampling?

300

Can you define linear regression?

288

Can you define analytics?

315

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

325

Can you explain root cause analysis?

268

Can you write the formula to calculate r-square?

290

Can you explain k-mean?

356

Why is data munging useful?

264

Can you define data reduction?

253

Can you define convex hull?

323

Can you explain recommender system?

294

Can you explain data preparation?

310


Post New Data Science Questions

Un-Answered Questions { Data Science }

Count the total number of trees in United States.

299


Can you use machine learning for time series analysis?

297


Explain how to operate on file and directory?

293


Explain the benefits of using statistics by data scientists

308


What is meant by lattice graphs?

366


What is k-means?

315


What are the various types of selection bias?

318


Find out K most frequent numbers from a given stream of numbers on the fly.

291


How will you test that there is increased probability of a user to stay active after 6 months given that a user has more friends now?

492


There are 8 identical balls and only one of the ball is slightly heavier than the others. You are given a balance scale to find the heavier ball. What is the least number of times you have to use the balance scale to find the heavier ball?

292


What are the differences between data science, machine learning, and artificial intelligence?

298


How would you do market basket analysis in r and python?

325


What is an outlier?

265


What is the difference between an analyst and a data scientist?

298


Explain the difference between a test set and a validation set?

276