for example, a bug was created on June 1st, and opened, in progress, resolved at last. It was closed on June 15th. So, the life span of it is about 15 days.
Our project has many bugs, I want to calculate how much time we used by average to resolve a bug, from its creation to close.
I checked the gadget, but can't find a proper one.
e.g. Average age chart, Average number of times in status, Average time in status, etc.
I am not sure if the charts above can approach that, maybe I can't find the correct way.
Any help will be much appreciated.