Credible interval history

Overview

This topic explains how to read and use the credible interval history tab of an experiment.

The credible interval history tab displays the metric's results over time for each variation.

The solid line represents the point estimate of the metric, which is the estimated mean of the metric values for the variation. The larger shaded area represents the range that contains 90% of the metric's probable values for the variation, called the credible interval.

The longer the experiment runs, the narrower and more precise the credible interval should become. As the credible interval narrows, you can have more confidence in the results of the experiment.