Debt (in thousands of dollars)
40
35
30
25
20
15
0
2008
2009
2010
2011
2012
2013
2014
2015
Average student debt in each graduating class
SOURCE: Mark Kantrowitz I WSJ.com
Use the information in the graph and the roster method
to represent each of the following sets.
a. The set of years in which the average student debt
was greater than $30,000.
b. The set of years in which the average student debt
was greater than $20,000 but less than $25,000.
c. The set of years in which the average student debt
was less than $30,000 but greater than $25,000.
antal bar graph