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 to check whether a particular word is a palindrome or not.

Microsoft,

293

How can you decide if one algorithm is better than the other?

417

What is meant by Random Forest Classifier?

268

Explain types of clustering algorithm?

275

What is the salary for a data scientist?

287

What is chi-square tests?

339

Explain OLS in brief?

322

What do you understand by Ordinary Least Squares Linear Regression?

283

What is the job of a data scientist?

317

How to install the ggplot2 package?

395

Explain each data visualization in detail?

292

What do you mean by graphics devices in data visualization?

279

Why is DBSCAN required?

317

What is the goal of the clustering?

291

Name the packages that are based on density based on the algorithm?

267

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Un-Answered Questions { Data Science }

How can you select k for k-means?

287

What do you understand by the selection bias? What are its various types?

288

What packages are used for data mining in python and r?

309

What is the best laptop for data science?

298

Explain data munging?

338

Can you write the formula to calculate r-square?

290

Define cluster sampling?

293

What is the definition of the unit test?

301

What is a generating function?

313

Explain the difference between a validation set and a test set?

281

What is the difference between supervised learning an unsupervised learning?

314

Is it possible to perform logistic regression with Microsoft Excel?

352

What do you understand by normal distribution?

444

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

451

Define some key performance indicators for the product

267

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