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

Data Science Interview Questions

Questions Answers Views Company eMail

what is bias?

357

When underfitting occurs in a static model?

397

What is normal distribution

339

Which language is best for text analytics? R or python?

315

What is logistic regression in data science?

459

Name three disadvantages of using a linear model?

391

Explain p-value?

371

What is reinforcement learning?

338

Explain the term binomial probability formula?

323

When do you need to update the algorithm in data science?

333

Discuss 'naive' in a naive bayes algorithm?

352

Explain collaborative filtering

401

Define the term deep learning?

337

Explain the difference between data science and data analytics?

362

Explain the benefits of using statistics by data scientists

353

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Un-Answered Questions { Data Science }

What is correlation in R?

391

Is it possible to capture the correlation between continuous and categorical variable?

330

A certain couple tells you that they have two children, at least one of whom is a girl. What is the probability that they have two girls?

337

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?

443

Discuss decision tree algorithm?

309

How do data scientists code in r?

340

What is k-means? How can you select k for k-means?

343

How do you handle missing values in python or r?

315

Which technique is used to predict categorical responses?

437

Write the formula to calculate r-square?

354

How many dentists are there in US?

405

How do you treat colinearity?

319

What are requirements for clustering?

509

Define data reduction?

290

Can you explain cross-validation?

294

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