Christine L. Case, Ed.D.
Biology Professor
Skyline College
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Medical Detective Problem #2

 

Hint 2: Calculation formulas.

  Exposed Not exposed (e) (f) Relative risk 
  Ill Not Ill Ill Not ill
Hamburger (a) (b) (c) (d) a/a+b c/c+d e/f
Lettuce              
Sprouts              
Dressing              

 

Show me the answers.