what is a/b test? how is winner version selected

Question

Accepted Answer

A/B testing is a method of comparing two versions of a webpage or app to determine which one performs better.

A/B testing involves creating two versions of a webpage or app, with one element changed in the second version.
The two versions are then shown to different groups of users, and their behavior is tracked to determine which version performs better.
The winner version is selected based on statistical significance, which means that the difference in performance between the two versions is not due to chance.
The winning version is then implemented as the new default version of the webpage or app.
A/B testing can be used to test different elements of a webpage or app, such as headlines, images, colors, and calls-to-action.

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