HY USMLE Q #1374 – Biostats

A study is performed using a new test for measuring serum luteinizing hormone. The average measurement for the study group was 4.0 IU/L, where approximately 0.1% of the enrollees had measurements above 5.5 IU/L. What is the approximate percentage of enrollees who had measurements below 3.0 mIU/L?

  2.5%
  5%
  16%
  34%
  50%