Testing random

[random832 at fastmail.us]

On Wed, Jun 10, 2015, at 13:03, Thomas 'PointedEars' Lahn wrote:
> This is _not_ a lottery box; you put the ball with the number on it *back 
> into the box* after you have drawn it and before you draw a new one.

Yes, but getting a 2, putting it back, and getting a 1 is just as good
as getting a 1, putting it back, and getting a 2, so you have to add the
probability of those cases together to get the probability of getting at
least one 1 and at least one 2.