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Consider the following cumulative relative frequency distribution.

 

  ClassCumulative
Relative
Frequency
  150 up to 2000.14
  200 up to 2500.25
  250 up to 3000.61
  300 up to 3501.00

 

a-1.Construct a relative frequency distribution. (Round your answers to 2 decimal places.)

 

  ClassRelative
Frequency
  150 up to 200[removed]      
  200 up to 250[removed]      
  250 up to 300[removed]      
  300 up to 350[removed]      
 
  Total[removed]      
 

 

a-2.What percent of the observations are at least 250 but less than 300?

 

  Percent of observations[removed]  

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