Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

Exercise 70

Sociology: College Graduates What percentage of the general U.S. 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.

(a) Make a box-and-whisker plot and find the interquartile range.
(b) Illinois has a bachelor's degree percentage rate of about 26%. Into what quartile does this rate fall