Answer: 9
Explanation:
you need the highest and lowset number which is= 4 and 24 4-24=20
now its only
5 7 9 10 14 16 20 add all of them up and it is 81
81/8=10.125
round the 1 and is back to 9
Answer:
The interquartile range is 10.
(xu-xl)=10
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