What are the steps involved in analytics projects?

323

What are eigenvectors and eigenvalues?

424

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?

373

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

305

Different between overfitting and underfitting?

431

What are various steps involved in an analytics project?

334

What is a/b testing in data science?

347

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.

292

Define data reduction?

293

A test has a true positive rate of 100% and 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?

564

How would churn help predict and control churn for a customer?

300

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

317

You are creating a report for user content uploads every month and observe a sudden increase in the number of upload for the month of November. The increase in uploads is particularly in image uploads. What do you think will be the cause for this and how will you test this sudden spike?

401

What are the roles and responsibilities of a data scientist?

350

What is the probability of pulling a different shape or a different colour card from a deck of 52 cards?

318