Question 189612: What is the interquartile range for the set (23, 58, 42, 27, 35, 39, 46)?
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! (23, 58, 42, 27, 35, 39, 46)
Rearranging -- lowest to highest:
(23, 27, 35, 39, 42, 46, 58)
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The 25th and 75th percentiles are the .25*(7+1) and .75*(7+1) = 2nd and 6th observations, respectively.
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IQR = 46-27 = 19
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Reference:
http://www.childrensmercy.org/stats/definitions/iqr.htm
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