ABTest


Bayes' theorem Probability Public

Easy  

10min


Your company is running a test that is designed to compare two different versions of the company’s website.

Version A of the website is shown to 60% of users, while version B of the website is shown to the remaining 40% of users. The test shows that 8% of users who are presented with version A sign up for the company’s services, compared to 4% of users who are presented with version B.

If a user signs up for the company’s services, what is the probability that she/he was presented with version A of the website?