Admission for UCSD. HELP

[ididitall]

<p>I just recently got my admission letter from ucsd after waiting about a month on the waitinglist. Honestly, I never imagine I would get in but since I did, it was definitely a wake-up call for me. I am currently a senior in high school and I have 2 A's, 2 B's, and 1 F. The F is for my AP statistics class which is my fourth year in math. I already submitted my SIR last night but I'm really scared I might be rescinded because there is no chance of raising the F. I already talked to my teacher and he provided no solution. Also the UCSD admissions officer was rude. She told me that with an F, my application will enter the process of cancellation. No guarantee but still made it sound like a promise. Does anyone know the probability of me getting rescinded with an F in AP stats? Oh and I'm a physical science - undeclared major in Sixth college. Please I need your feedback</p>