<prompt> ECG was performed on a total of 700 subjects with complaints of acute chest pain. Of these, 520 patients had myocardial infarction. Calculate the specificity of ECG:rn rnrnrnrnMYOCARDIAL INFARCTIONrnrn rn rn rnrnrnrnECGrnrnrnPRESENTrnrnrnABSENTrnrnrnTOTALrnrnrnrnrnPOSITIVErnrnrn416rnrnrn9rnrnrn425rnrnrnrnrnNEGATIVErnrnrn104rnrnrn171rnrnrn275rnrnrnrnrnTOTALrnrnrn520rnrnrn180rnrnrn700rnrnrnrn20558095  <response>: Specificitytrue negativetrue negative false positive 171180 x 100 95 Ref: Medical biostatistics, 1st edition pg: 199 