[EM] A question in classroom creation

[Paul Kislanko]

> -----Original Message-----
> From: James Green-Armytage 
> Commentary:
> 	I think that Paul is right about the number of possible 
> arrangements
> given 100 children and 4 classes, which means that I am most 
> likely wrong.
> My second guess at the magic number is (100!)/((25!)^4)... is that
> correct, Paul? I obviously need to brush up on my probability and
> statistics. Any idea what is the order of magnitude for 
> (100!)/((25!)^4)?

The order of magnitude of (100!)/((25!)^4) is ~ 1.61 x 10^57, same as what I
got from the C(100,25) x C(75,25) x C(50,25) x 1 analysis.