Christine L. Case, Ed.D.
Biology Professor
Skyline College

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Medical Detective Problem #2

 

The Answer

  Exposed Not exposed Relative risk 
  Ill Not Ill Ill Not ill
Hamburger 10 22 17 15 0.59
Lettuce 13 19 7 25 1.86
Sprouts q 18 0 32 14.44
Dressing 11 21 7 25 1.57