Explain the decision tree algorithm, and how is it different from the random forest algorithm?

308

List out the libraries in python used for data analysis and scientific computations?

309

What would you add to Facebook and how would you pitch it and measure its success?

365

Python or R is better for data science?

391

If we added one rider to the current SF market, how would that affect the existing riders and drivers?

378

What is an api? What are apis used for?

330

What is missing value imputation?

343

What does ITER () do in Python?

454

How will you test a machine learning model for accuracy?

314

How to choose the right chart in case of creating a viz?

310

What is the central limit theorem? How is a normal distribution different from chi square distribution?

340

How can you produce co-relations and covariances?

327

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?

436

Can you explain cross-validation?

289

What are limitations of DBSCAN?

453