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What percentage of the general U.S. population are high-school dropouts? The Statistical Abstract of the United States, 120th Edition, gives the percentage of high-school dropouts by state. For convenience, the data are sorted in increasing order.
5 6 7 7 7 7 8 8 8 8
8 9 9 9 9 9 9 9 10 10
10 10 10 10 10 10 11 11 11 11
11 11 11 11 12 12 12 12 13 13
13 13 13 13 14 14 14 14 14 15


(a) Select the box-and whisker plot.

(b) Find the interquartile range.
IQR =


(c) Wyoming has a dropout rate of about 7%. Into what quartile does this rate fall?
Q1
between Q1 and the median
Q3
above Q3


What Percentage Of The General US Population Are Highschool Dropouts The Statistical Abstract Of The United States 120th Edition Gives The Percentage Of Highsch class=