Posted by **Nadia** on Friday, March 18, 2011 at 11:34am.

Marks: --/20 What percentage of the general US population have bachelor's degrees? The Statistical Abstract of the United States (120th edition), gives the percentage of bachelor's degrees by state. For convenience, the data are sorted in increasing order.

17, 18, 18, 18, 19, 20, 20, 20, 21, 21

21, 21, 22, 22, 22, 22, 22, 22, 23, 23

24, 24, 24, 24, 24, 24, 24, 24, 25, 26

26, 26, 26, 26, 26, 27, 27, 27, 27, 27

28, 28, 29, 31, 31, 32, 32, 34, 35, 38

Find the interquartile range

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