If I wanted to implement functions to make writing statistics problems easier (mean, variance_pop, std_dev_sample,...) where would I go about placing the functions. This tends to make the Statistics problems take more code than it would otherwise. PGstatisticsmacros.pl seems like a good place, but that seems poorly populated with functions currently.
Also is there documentation anywhere for which github server should be developed on and how to get commit access? (Not that I'm there yet, but...)