NPV IN FORMULAE
P(ND|-) = P(-|ND) P(ND) /
P(-)
P(A|B) = P(B|A) P(A) /
P(B)
TN
FN
+
NPV =
TN/All
(FN+TN) / All
TN/(TN+FP) * (TN+FP)/All
P(-|ND)
* P(ND)
Specificity
NPV