<p>1) No, I'd assume they'd want previous scores as well.</p>
<p>2) If they're WAY lower than your predicted scores, they'll probably want you to explain it. Otherwise, they're just a formality.</p>
<p>3) It depends on your other attributes - admissions is holistic, not purely numbers-based. I applied with a 42 and was deferred, I know others who've gotten in with 40s.</p>
<p>4) No more than anyone else. If your school ranks, they would want your rank.</p>
<p>5) Don't know. I'm not even sure statistics are kept on that. The school I attend is one of the top in Canada (and the world) though - aside from having very high average scores, we have also introduced a couple of IB pilot courses (PhysChem, World Cultures, etc.).</p>