1120-1121 / 1676
Prevalence
P(D)
Probability of a disease or fraction of the population
with the disease
Specificity
P(-|ND) = TN / (FP+TN)
Probability of a negative test given the individual does
not have the disease
How often the test will correctly identify a non-disease
individual
This is the fraction of TRUE NEGATIVES
SPECIFICITY