Posted: Dec 27, 2018 5:30 am
Hmm, see this WMW entry, equation (17). But it is a beast (to me, anyway). The references may be of interest too, but I did not check.
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2670341#p2670341