## a-priori probability: P(C) = P(~C) = 0.5

## Decision threshold: P = 0.5

## SBPH/BCR has a VERY steep ROC curve: >99 % of messages evaluate to the top or bottom .0000000001'th of the probability range 0.0 – 1.0 (the ROC curve is basically one point about .001 units away from the origin)

## SBPR/BCH is essentially

to parameters*insensitive*