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?

267

Explain types of clustering algorithm?

275

What is the salary for a data scientist?

287

What is chi-square tests?

337

Explain OLS in brief?

320

What do you understand by Ordinary Least Squares Linear Regression?

283

What is the job of a data scientist?

315

How to install the ggplot2 package?

390

Explain each data visualization in detail?

290

What do you mean by graphics devices in data visualization?

276

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?

265

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Un-Answered Questions { Data Science }

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

302

What is the common perception of visualization?

254

What does Machine Learning mean for the Future of Data Science?

321

What are the various types of selection bias?

317

Write the formula to calculate r-square?

318

Why is data cleaning essential in data science?

264

What are requirements for clustering?

456

How do you define data science?

286

What is supervised learning?

278

What is meant by selection bias?

335

What is the best laptop for data science?

298

There are 8 identical balls and only one of the ball is slightly heavier than the others. You are given a balance scale to find the heavier ball. What is the least number of times you have to use the balance scale to find the heavier ball?

292

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

316

why do you need to perform resampling?

306

What is a univariate analysis?

304

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