<prompt> Select false statement regarding Receiver Operating Characteristic ROC:-Trading off between sensitivity and specificity is achieved by ROC curveHigher is the curve better is the screening test cut-offIt represents Likelihood ratio of positive testNone of above  <response>: Receiver Operating CharacteristicROCcurve:- Trading off bw sensitivity specificity is achieved by ROC curve. Black: No use Red: Fair Blue: Good Higher is the curve better is the screening test. It represents LR likelihood ratio of positive test Uses of ROC curve:- Determining the threshold for screening diagnosis of a positive test. Comparison of two or more screening diagnosis test of a disease with each other. 