Graduation A private college report contains these statistics: 70% of incoming freshmen attended public schools. 75% of public school students who enroll as freshmen eventually graduate. 90% of other...

Graduation A private college report contains these statistics: 70% of incoming freshmen attended public schools. 75% of public school students who enroll as freshmen eventually graduate. 90% of other freshmen eventually graduate.

a) Is there any evidence that a freshman’s chances to graduate may depend upon what kind of high school the student attended? Explain.

b) What percent of freshmen eventually graduate?