Q&A about the site for designers and users of artificial or invented languages, consciously developed instead of having developed naturally
select avg(cast(u.Reputation as bigint)), stdev(cast (u.reputation as bigint) )
from posts as p, posts as a, users as u
where p.AcceptedAnswerId = a.Id
and u.Id = a.OwnerUserId
and p.CreationDate > '2016-04-01'