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Data Science Interview Questions
Questions Answers Views Company eMail

What makes scientific data?

353

What are feature vectors?

342

Among python and r, which one is generally preferred for text analytics?

346

What is the difference between a cluster and systematic sampling?

340

Describe some assumptions considered important for linear regression?

312

What is selection bias?

339

Differentiate between type I and type ii error?

337

Give an example of a data set that has a non-gaussian distribution?

349

What is the importance of data cleaning in analysis?

319

Describe the various steps involved while carrying out an analytical project?

329

Different between overfitting and underfitting?

428

Differentiate between skewed and uniform distribution?

362

Why is dimensional reduction performed before fitting a support vector machine (svm)?

366

What is the importance of selection bias?

343

What is the purpose of a/b testing?

340


Post New Data Science Questions

Un-Answered Questions { Data Science }

Explain the differences between univariate and bivariate analysis?

330


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


Do you need a teacher to be a scientist?

333


What are decorators in Python?

1334


What is the role of the activation function?

323


What is the difference between supervised and unsupervised methods?

380


Can you provide an example of features extraction?

339


What are the various classification algorithms?

357


Count the total number of trees in United States.

335


Is macbook good for data science?

336


In any 15-minute interval, there is a 20% probability that you will see at least one shooting star. What is the proba­bility that you see at least one shooting star in the period of an hour?

488


How to create survival object in R?

565


What education is required for data science role?

332


You have a bag with 6 marbles. One marble is white. You reach the bag 100 times. After taking out a marble, it is placed back in the bag. What is the probability of drawing a white marble at least once?

313


What is interpolation and extrapolation?

420