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In a recent survey, 8 people were each asked the number of times they have been on an airplane. Here is a list of the responses.
9, 21, 7, 11, 13, 21, 5, 14
Find the range of the data set.

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rxinbow1134
Answer: 16

Explanation: Range is the difference between the highest and lowest number.
21 - 5 = 16.
JonHenderson55

Answer: The range of the data set is: " 16 " .

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Explanation:
The range is calculated by subtracting the lowest value in the given data set from the highest value in the data set.
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Given: The data set:   9, 21, 7, 11, 13, 21, 5, 14 ;

Let us organize these numbers from lowest value to highest value:
  " 5, 7, 9, 11, 13, 14, 21, 21 " ;
Note:  This is done by inspection.  Note that all eight (8) values are accounted for.
    So, we subtract the lowest value in our given data set:  "5" ;

from the highest value in our given data set:  "21" ;  to get the "range":

            →  " 21 − 5 = 16 " ;

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The range is:  " 16 " .
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Hope this is helpful!  Best wishes!

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