Weighted/Unweighted Class Rank

I was wondering how class rank really work for the UC system? Is the rank Weighted or Unweighted, or is this depending on the high school that the student attend? Also, my school gives me 2 class ranks. One frm 9 - 11 and one from 10 - 11. Which one will the UCs consider?

<p>anyone...???</p>

<p>UC's don't use class rank. Problem solved.</p>

<p>could anyone explain the difference between weighted and unweighted? what is it exactly?</p>

<p>Weighted is when you take AP or Honors classes and extra points are given for those courses.</p>

<p>Regular class:
A - 4
B - 3
C - 2</p>

<p>AP/Honors:
A - 5
B - 4
C - 3</p>