Solve the problem. See Example 6.Bachelor’s Degree Attainment  The graph shows a straight...

Solve the problem. See Example 6.

Bachelor’s Degree Attainment  The graph shows a straight line that approximates the percentage of Americans 25 years and older who earned bachelor’s degrees or higher during the years 1990–2006. Use the midpoint formula and the two given points to estimate the percent in 1998. Compare your answer with the actual percent of 24.4.

Percent of Bachelor’s Degrees or Higher

Source: U.S. Census Bureau.

EXAMPLE 6

APPLYING THE MIDPOINT FORMULA TO DATA