The average GPA is about 3.76 so I guess we'd have to dig deeper into your 2.8 example's other qualifications. From Prepscholar:
"With a GPA of 3.76, UConn requires you to be above average in your high school class. You'll need at least a mix of A's and B's, with more A's than B's. You can compensate for a lower GPA with harder classes, like AP or IB classes. This will show that you're able to handle more difficult academics than the average high school student.
"If you're currently a junior or senior, your GPA is hard to change in time for college applications. If your GPA is at or below the school average of 3.76, you'll need a higher SAT or ACT score to compensate. This will help you compete effectively against other applicants who have higher GPAs than you."
Find out admissions requirements for UConn, including GPA requirements and SAT, ACT, and application requirements.
www.prepscholar.com