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Data Science Interview Questions
Questions Answers Views Company eMail

What is term Pearson’s Correlation Coefficient?

370

What is meant by feature vectors?

328

What is meant by R statistics?

333

Name Methods to Calculate Distance Measure?

374

Explain types of statistical data?

323

What functions are required to principal analysis in R?

431

What is need of principal component analysis?

426

What is meant by lattice graphs?

417

What do you understand by Linear Regression in R?

606

What are Principal components?

504

What is meant by lattice?

517

A dice is rolled twice, what is the probability that on the second chance it will be a 6?

Citi Bank,

333

On rolling a dice if you get $1 per dot on the upturned face,what are your expected earnings from rolling a dice?

289

You have two sorted array of integers, write a program to find a number from each array such that the sum of the two numbers is closest to an integer i.

Adobe,

328

How can you compute an inverse matrix faster by playing with some computation tricks?

Microsoft,

336


Post New Data Science Questions

Un-Answered Questions { Data Science }

Which plot will you use to access the uncertainty of a statistic?

332


How long does it take to become a data scientist?

451


What is a univariate analysis?

354


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

329


What is the difference between select and update query?

405


Explain interpolation and extrapolation?

324


What is nosql? Name some examples of nosql databases. What is a key value store? What is column storage? What is a document database?

297


How regularly must an algorithm be updated?

366


Can you compare the validation set with the test set?

338


What is the role of activation function?

503


How can you check if a data set or time series is random?

356


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

319


Print the elements of a matrix in zig-zag manner.

322


How will you check if an element 25 is present in a vector?

427


What do you understand by term hash table collisions?

315