Since Exercises use real data, they are best answered with technology.College Graduates Fi...

Since Exercises use real data, they are best answered with technology.

College Graduates Figure gives the percent of persons 25 years and over who have completed four or more years of college. (Source: U.S. Dept. of Education)

(a) Use the method of least squares to obtain the straight line that best fits these data.

(b) Estimate the percent for the year 2008.

(c) If the trend determined by the straight line in part (a) continues, when will the percent reach 32?

Figure College Graduates.