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Data Science Interview Questions
Questions Answers Views Company eMail

What will you do if removing missing values from a dataset cause bias?

Airbnb,

364

How can you reduce bias in a given data set?

Airbnb,

362

How will you impute missing information in a dataset?

Airbnb,

349

Estimate the probability of a disease in a particular city given that the probability of the disease on a national level is low.

Amazon,

347

How will inspect missing data and when are they important for your analysis?

Amazon,

387

How will you decide whether a customer will buy a product today or not given the income of the customer, location where the customer lives, profession and gender? Define a machine learning algorithm for this.

Amazon,

292

From a long sorted list and a short 4 element sorted list, which algorithm will you use to search the long sorted list for 4 elements.

Amazon,

329

How can you compare a neural network that has one layer, one input and output to a logistic regression model?

Amazon,

294

How do you treat colinearity?

Amazon,

319

How will you deal with unbalanced data where the ratio of negative and positive is huge?

Amazon,

322

What is the difference between Stack and Queue

Amazon,

512

What is the difference between Linkedin and Array

Amazon,

428

You are about to get on a plane to Seattle, you want to know whether you have to bring an umbrella or not. You call three of your random friends and as each one of them if it's raining. The probability that your friend is telling the truth is 2/3 and the probability that they are playing a prank on you by lying is 1/3. If all 3 of them tell that it is raining, then what is the probability that it is actually raining in Seattle.

Facebook,

341

You have been given the data on Facebook user's friending or defriending each other. How will you determine whether a given pair of Facebook users are friends or not?

Facebook,

367

Estimate the number of square feet pizza's eaten in US each year.

Goldman Sachs,

346


Post New Data Science Questions

Un-Answered Questions { Data Science }

Why are generators used in Python?

398


Which one you prefer R or Python for text analytics?

409


Can you define data reduction?

312


Explain the two main components of the hadoop framework?

345


What does pip installation?

340


What is the degree of freedom for lasso?

353


What’s the difference between pip and pip3?

382


what is bias?

361


What are you employed pip?

344


What is the difference between iterator and generator in Python?

410


Define a sql query?

347


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

322


What are distance measures in R statistics?

401


What are outlier values?

418


What are the different deep learning frameworks?

358