[roguecoder]

2) It's 227*0.22; you still get the original 100% too. If it were 27% oversubscribed you'd get 28%.

3) It is an assumption, though one that fits with my experience of hackathons (they tend to be 15-20% women.) I wasn't saying it's guaranteed that women will want to attend, just that there are qualified women who could.

4) Department of Labor, 2009 numbers: http://www.bls.gov/cps/wlf-databook-2009.pdf Page 29.