Udacity are running an Introduction to Statistics course starting on the 25th June 2012.
Many of us could stand to learn some more stats, I certainly could. This seems like a great opportunity!
It is mandatory for all LWers to enroll in this course.
Update: the last line was a joke. Obviously people are not finding it funny. Sorry.
I think you are assuming that "all LWers" do not have an introductary knowledge to statistics.
I wouldn't mind some more advanced statistics courses, but I am perfectly capable of performing all of the tests I expect to encounter in this course. My efforts to become stronger are better spent elsewhere.
See here.