paulaowens75 paulaowens75

11-10-2016
Mathematics

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12, 6, 7, 11, 11, 9, 13, 16, 10. What is the interquartile range of the data set?

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texaschic101 texaschic101

11-10-2016

first put the numbers in order
6,7,9,10,11,11,12,13,16

Q1 = (7 + 9) / 2 = 16/2 = 8
Q2 (median) = 11
Q3 = (12 + 13) / 2 = 25/2 = 12.50

Interquartile range (IQR) = Q3 - Q1 = 12.50 - 8.00 = 4.5

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