Question

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.

Answer 1

Answer: 16

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

Answer 2

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

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Step-by-step 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!