home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!malgudi.oar.net!caen!destroyer!cs.ubc.ca!unixg.ubc.ca!kakwa.ucs.ualberta.ca!janus.arc.ab.ca!janus.arc.ab.ca!news
- Newsgroups: rec.puzzles
- Subject: Are you sure?
- Message-ID: <1993Jan22.131719.36@janus.arc.ab.ca>
- From: morgan@arc.ab.ca (Sean Morgan)
- Date: 22 Jan 93 13:17:18 MDT
- Distribution: world
- Organization: Alberta Research Council
- Nntp-Posting-Host: 128.144.5.37
- Lines: 9
-
- You meet the daughter of a friend of yours on the street. You know that your
- friend has two children. You think to yourself, "Ignoring the occurrence of
- twins, and sex-linked differences in birth rates and infant mortality, what are
- the odds of this girl's sibling also being a girl?"
- -----------------+-------------------------------
- Sean Morgan | ALBERTA 6815 - 8 Street N.E.
- | RESEARCH Calgary, AB, Canada
- morgan@arc.ab.ca | COUNCIL T2E 7H7
-
-