chance of getting in

<p>my sibling is a current freshman in NU and she got in with a weighted 4.4 and 32 on her act.
granted, i know alot of different factors go into admissions but just on a very broad scale..
does sibling legacy help getting accepted?
and where would a weighted 4.3 and 33 on the ACT put me for a chance of getting in (very generally)</p>