Which plot will you use to access the uncertainty of a statistic?

330

What are various steps involved in an analytics project?

334

Burn two ropes, one needs 60 minutes of time to burn and the other needs 30 minutes of time. How will you achieve this in 45 minutes of time ?

338

How to understand the problems faced during data analysis?

339

How can you generate a random number between 1 – 7 with only a die?

590

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

315

What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression?

313

Can you write the formula to calculate r-square?

337

What are recommender systems?

348

Explain difference between binomial and Poisson distribution?

340

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

350

You are about to get on a plane to Seattle, you want to know whether you have to bring an umbrella or not. You call three of your random friends and as each one of them if it's raining. The probability that your friend is telling the truth is 2/3 and the probability that they are playing a prank on you by lying is 1/3. If all 3 of them tell that it is raining, then what is the probability that it is actually raining in Seattle.

336

How is true positive rate and recall related?

289

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

402

What is meant by feature vectors?

328