Question for the mathematically inclined

[plural]

Statistically the
frequency of occurrence of
Twins (either fraternal or identical)
being born to one set of parents
by volume of total children conceived

or
in other words

if I wanted to have
39 children
statistically speaking
how many sets of twins
would I be likely to have?

Comments

[petermarcus.livejournal.com]

The odds don't look good, my friend. Statistically, maybe one set.

Read this. (http://uwphysicians.org/hbeat/hb971202.html)