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Data Science Interview Questions
Questions Answers Views Company eMail

Define convex hull?

289

Write the formula to calculate r-square?

318

Explain k-mean?

271

Explain recommender system?

289

Explain the two main components of the hadoop framework?

312

Define analytics?

281

Explain the difference between data modeling and database design?

287

Define data reduction?

253

Explain data munging or data wrangling?

256

Define linear regression?

287

Define feature vector?

345

Explain the difference between sas, r and python programming?

298

Explain data cleansing?

293

Explain the differences between univariate, bivariate and multivariate analysis?

276

Explain the difference between bayesian estimate and maximum likelihood estimation (mle)?

300


Post New Data Science Questions

Un-Answered Questions { Data Science }

Advantages of tableau prep?

308


Do you prefer python or r for text analytics?

281


Can you explain data munging or data wrangling?

284


Is jupyter open source?

281


Please explain the goal of a/b testing.

307


What is the central limit theorem and why is it important?

292


What skills do I need to be a data scientist?

308


Explain about string parsing in R language

302


Write a function to extract the first name from the string?

265


Explain types of clustering algorithm?

275


In k-means or knn, we use euclidean distance to calculate the distance between nearest neighbors. Why not manhattan distance?

381


What prior subject is required to become a data analyst?

290


Define an algorithm to discover when a person is starting to search for new job.

333


What is the difference between kmeans clustering and hierarchical clustering?

379


Can you enumerate the various differences between supervised and unsupervised learning?

280