Data Science Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Science Interview Questions

Questions Answers Views Company eMail

Write a function that takes in two sorted lists and outputs a sorted list that is their union?

403

You created a predictive model of a quantitative outcome variable using multiple regressions. What are the steps you would follow to validate the model?

344

Can you cite some examples where a false negative important than a false positive?

363

Can you explain the difference between a Test Set and a Validation Set?

341

Can you cite some examples where both false positive and false negatives are equally important?

400

How can you assess a good logistic model?

409

What do you understand by the job description of data scientist?

339

How can you deal with different types of seasonality in time series modelling?

352

What is an Eigenvalue and Eigenvector?

346

What prior subject is required to become data analyst?

354

Why L1 regularizations causes parameter sparsity whereas L2 regularization does not?

419

What do you understand by statistical power of sensitivity and how do you calculate it?

348

Give some situations where you will use an SVM over a RandomForest Machine Learning algorithm and vice-versa?

460

How do data management procedures like missing data handling make selection bias worse?

497

What is meant by logistic regression?

395

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Un-Answered Questions { Data Science }

Python is enough for data science ?

353

What is underfitting?

323

Name various types of deep learning frameworks

439

What is back propagation?

330

Why is Python used in data science?

367

What is back propagation and explain it’s working.

336

What are the factors used to produce "People You May Know" data product on LinkedIn?

315

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

Can you define analytics?

348

What are Type 1 and Type 2 errors ?

336

What is the probability of pulling a different shape or a different colour card from a deck of 52 cards?

318

What is meant by R statistics?

333

Explain the two main components of the hadoop framework?

345

What does a data scientist do?

407

Differentiate between data modeling and database design?

329

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