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* kaplan biostat q
 #852099  
  vibhav - 06/12/18 15:41
 
  55 yr old man visits his physician with c/o urinary infrequency. on examination 1cm nodule is found on his prostate gland.PSA serum test result is 7 ng/ml.a PSA level of >4ng/ml is abnormal.using this standard this test has a sensitivity of 80% and a specificity of 90%. a recently published epidemiological article found that in a cross sectional study, 10% of men of this age have prostate cancer. what is ur best estimate of the likelihood that this man actually has prostate cancer?
A.13%
B.25%
C.36%
D.47%
E.58%
F.69%
G.72%
H.81%
 
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