In CA Data Protection 15.0, random sampling enhancement was done to support decimal value in sampling rate. This functionality has been deprecated from release 15.1 onwards, but sampling rate explanation still shows the deprecated functionality explanation.
a. Further installation details can be found in the "Applying Hotfixes" section in the CA Data Protection 15.2 DocOps space.
b. The following files will be updated when applying these hotfixes: system\setup\UserEditorPolicy.xml - - 19-Apr-2018