[SystemSafety] A Critical-System Assurance Manifesto

[Peter Bernard Ladkin]

On 2017-12-12 10:18 , RICQUE Bertrand (SAFRAN ELECTRONICS & DEFENSE) wrote:
> My understanding was that drawing process was supposed to be neutral when picking a token
Whatever "neutral" means.

The key property is that there is a fixed probability p of picking a white ball.

This does not translate into saying that all the balls must be picked one after another (as if the
balls represented inputs), or indeed any other way of picking the balls.

It might be a disadvantage of the Urn model that it seems to lead people to misleading conclusions
such as that the inputs to a Bernoulli Process must fit a such-and-such-distribution curve.

PBL

Prof. Peter Bernard Ladkin, Bielefeld, Germany
MoreInCommon
Je suis Charlie
Tel+msg +49 (0)521 880 7319  www.rvs-bi.de





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