The side-by-side bar graph to the right shows the average grade point average for the academic years beginning in 1983, 1988, 1993, 1998, 2003, 2008, and 2013, for colleges and universities.
(a) Does the graph suggest that grade inflation is a problem in colleges?
(b) In 1998, a grade of A became the most popular grade nationwide. Determine the percentage increase in GPAs for public schools from 1998 (2.92) to 2013 (3.07). Determine the percentage increase in GPAs for private schools from 1998 (3.11) to 2013 (3.30). Which type of institution appears to have the higher inflation?

(c) Do you believe the graph is misleading? Explain

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Average GPA 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 Recent GPA Trends Nationwide Four-Year Colleges and Universities Year 1983 1988 1993 1998 2003 2008 2013 All Schools Public Schools Private Schools