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Data Science Interview Questions
Questions Answers Views Company eMail

What is collaborative filtering?

323

I have a string “contact@dezyre.com”. Which string function can be used to split the string into two different strings “contact@dezyre” and “com” ?

366

A test has a true positive rate of 100% and 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?

564

How do I open the terminal in pycharm?

413

What are you employed pip?

344

Why data cleaning plays a vital role in analysis?

385

Is anaconda free?

337

How long should a pip last?

373

Are expected value and mean value different?

431

Explain how to merge the files into a single dataframe?

361

What is interpolation and extrapolation?

420

What is data science with example?

355

Explain how to operate on file and directory?

325

Is jupyter open source?

326

Who can be scientific data there are three general steps to becoming a data scientist?

337


Post New Data Science Questions

Un-Answered Questions { Data Science }

How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.

341


What is the salary for a data scientist?

325


What are iterators in Python?

381


What laptop should I buy for data science?

343


How can you produce co-relations and covariances?

332


Can you use machine learning for time series analysis?

337


You are given a training dataset of users that contain their demographic details, the pages on Facebook they have liked so far and results of psychology test based on their personality i.e. their openness to like FB pages or not. How will you predict the age, gender and other demographics of unseen data?

339


Explain the decision tree algorithm?

401


Explain the difference between sas, r and python programming?

328


What are the types of biases that can occur during sampling?

353


How do I open the terminal in pycharm?

413


What do you understand by Ordinary Least Squares Linear Regression?

318


What are the different performance metrics for evaluating Uber services?

327


Can you write the formula to calculate r-square?

337


What kind of product you want to build at LinkedIn?

312