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Data Science Interview Questions
Questions Answers Views Company eMail

Explain about string parsing in R language

Google,

338

A disc is spinning on a spindle and you don't know the direction in which way the disc is spinning. You are provided with a set of pins.How will you use the pins to describe in which way the disc is spinning?

Google,

436

Describe the data analysis process.

Google,

396

How will you cut a circular cake into 8 equal pieces?

Google,

298

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

LinkedIn,

358

How will you prove that the square root of 2 is irrational?

Goldman Sachs,

304

Explain principal components analysis with equations.

Uber,

358

How will you compare the results of various machine learning algorithms?

Uber,

360

Implementing pow function

LinkedIn,

351

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

LinkedIn,

322

Which machine learning algorithm will you use to solve a Uber driver accepting request?

Uber,

357

What approach will you follow to develop the love,like, sad feature on Facebook?

Facebook,

379

You are given 50 cards with five different colors- 10 Green cards, 10 Red Cards, 10 Orange Cards, 10 Blue cards, and 10 Yellow cards. The cards of each colors are numbered from one to ten. Two cards are picked at random. Find out the probability that the cards picked are not of same number and same color.

Facebook,

452

Pick up a coin C1 given C1+C2 with probability of trials p (h1) =.7, p (h2) =.6 and doing 10 trials. And what is the probability that the given coin you picked is C1 given you have 7 heads and 3 tails?

Facebook,

335

Give a large dataset, find the median.

Twitter,

333


Post New Data Science Questions

Un-Answered Questions { Data Science }

What is the k-means clustering method?

368


Can you explain difference between data modeling and database design?

349


What are requirements for clustering?

498


Explain the differences between bivariate and multivariate analysis?

338


What is the 80/20 rule? Explain its importance in model validation?

313


Explain survivorship bias?

443


What is the central limit theorem?

363


What is cluster sampling?

416


Explain cluster sampling technique in data science

399


What is difference between sas, r and python programming?

371


Explain calculate distance methods briefly?

314


How will you decide which version (Version 1 or Version 2) of the Surge Pricing Algorithms is working better for Uber ?

369


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

322


What is the difference between a cluster and systematic sampling?

329


Discuss decision tree algorithm?

303