Answers

  • Brainly User
2016-02-25T19:33:34+08:00
Arrange from lowest to highest score:

15, 18, 20, 23, 28, 28, 33, 35, 40, 42

To find the 3rd decile for ungrouped data:
 
    D₃ = (3/10) (  10)
   
     D₃ = 3

From left, count 3.  

The 3rd decile is 20.

 

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