How about conditional probabilities?

If E1 is a proper subset of E2, and both E1 and E2 are measuarable
and have probability zero,
it is possible that the conditional probability
P(E1 | E2) is strictly less than one.

So in some sense we may say that E1 is "less probable" than E2.

Btw, I have deleted the groups "sci.physics" and "sci.math" for
"newsgroups" and "followup to".

In sci.stat.math Gabriel Chime <[EMAIL PROTECTED]> wrote:
> Is there a nonstandard way to describe and compare probabilities of
> measure zero sets?

> Let's pick a real number, x, with uniform distribution. 
> Then let
> p0 = P(x = 0),
> pr = P(x is rational).

> Then, p0=pr=0, yet my intuition tells me that pr > p0.

> Is there a way of assigning infinitesimal (hyperreal) probabilities
> s.t.
> epsilon > pr > p0 >= 0 for all real positive epsilon?
.
.
=================================================================
Instructions for joining and leaving this list, remarks about the
problem of INAPPROPRIATE MESSAGES, and archives are available at:
.                  http://jse.stat.ncsu.edu/                    .
=================================================================

Reply via email to