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Data Science Interview Questions
Questions Answers Views Company eMail

What do you mean by p-value?

323

What is the 80/20 rule?

340

How decision tree algorithm is different from the random forest algorithm?

345

What is the roc curve?

351

What is the aim of a/b testing?

319

Define naive bayes?

322

How is data science different from data analytics?

350

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

321

Explain box cox transformation?

395

Explain the decision tree algorithm, and how is it different from the random forest algorithm?

328

What is the svm algorithm?

430

Explain the importance of 80/20 rule in model validation?

332

Explain the term "data warehouse".

364

What do you understand by ensemble learning?

357

What do you understand by confusion matrix?

365


Post New Data Science Questions

Un-Answered Questions { Data Science }

What do you mean by p-value?

323


What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression?

313


Define data discretization?

299


Why do we need generators in Python?

456


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

376


Explain how can you assess a good logistic model?

324


How would add new Facebook members to the database of members, and code their relationships to others in the database?

365


Compare sas, r, python, perl?

348


What is the 80/20 rule?

340


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?

336


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.

463


A test has a true positive rate of 100% and a false-positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?

373


What is a recall?

385


How do you understand by bias variance trade off?

335


Name Methods to Calculate Distance Measure?

375