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Data Science Interview Questions
Questions Answers Views Company eMail

What is the difference between bayesian estimate and maximum likelihood estimation (mle)?

276

Why is it mandatory to clean a data set?

334

What tools or devices help you succeed in your role as a data scientist?

310

A test has a true positive rate of 100% and a false-positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?

328

What is meant by supervised and unsupervised learning in data?

268

Why do you want to work at this company as a data scientist?

263

What are outlier values?

370

How to work towards a random forest?

379

What devices or tools help you most as a data scientist?

255

Explain the goal of a/b testing?

279

What are the various types of selection bias?

305

Please explain the goal of a/b testing.

298

Do gradient descent methods always converge to the same point?

407

Explain how to define the number of clusters in a clustering algorithm?

359

What is meant by sampling? Explain some sampling methods that you know?

270


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Un-Answered Questions { Data Science }

If you had to choose between the programming languages r and python, which one would you use for text analytics?

352


Discuss 'naive' in a naive bayes algorithm?

297


Explain the term "data warehouse".

312


What is collaborative filtering in data science?

350


Now companies are heavily investing their money and time to make the dashboards. Why?

271


Why do you want to work at this company as a data scientist?

263


How will you design a recommendation engine for jobs?

310


Explain difference between binomial and Poisson distribution?

280


What is data science? How would you say it is similar or different to business analytics and business intelligence?

290


What are the time series algorithms?

354


A dice is rolled twice, what is the probability that on the second chance it will be a 6?

291


How will you fix multi-colinearity in a regression model?

277


Name Methods to Calculate Distance Measure?

331


Please explain the goal of a/b testing.

298


Which method in pandas.tools.plotting is used to create scatter plot matrix?

381