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Data Science Interview Questions
Questions Answers Views Company eMail

What is meant by linear regression?

269

What do you understand by the selection bias?

284

What is machine learning? What is the difference between supervised and unsupervised methods?

294

How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.

300

What is logistic and linear regression?

302

How is bagging different from boosting?

314

What is an rdbms? Name some examples for rdbms? What is crud?

270

What is market basket analysis? How would you do it in r and python?

277

What is random forests?

310

How do you treat outlier data?

303

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

275

What is linear optimization?

283

How do you use sql in sas, python, r languages?

306

Name some packages in r and python for building regression models.

286

What is f test?

367


Post New Data Science Questions

Un-Answered Questions { Data Science }

What is cross-validation?

264


How can you produce co-relations and covariances?

294


Discuss normal distribution

350


Is macbook good for data science?

287


What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.

275


How would you do market basket analysis in r and python?

324


Explain the differences between univariate, bivariate and multivariate analysis?

274


What is the roc curve?

315


How can I achieve accuracy in the first model that I built?

262


How will you decide whether a customer will buy a product today or not given the income of the customer, location where the customer lives, profession and gender? Define a machine learning algorithm for this.

265


Are the expected value and mean value different?

340


What do you understand by type I vs type ii error?

307


Please explain gradient descent?

303


How can outlier values be treated?

364


How does data cleaning plays a vital role in analysis?

361