specificity = TN/TN+FP
true negatives = negative test in patient who does not have the disease
false positives = positive test in patient who does not have the disease
5 asymptomatic patients have positive test => 95 asymptomatic patients are true negatives
TN + FP = all asymptomatic patients = 100
specificity = 95/100 = 95%
submitted by โstep_prep(148)
https://step-prep.org