Nine 
  percent of the US population has Type B blood. In a sample of 400 individuals 
  from the US population, 12.5% were found to have Type B blood. Click on your 
  answer: 
 
 
  In this particular situation, the value 12.5% is a 
  
   
  
  
 
 
  
Let's Do It! 2.1 - Parameter or Statistic
 
  
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  In this particular situation, the value 9% is a