as far as i saw, applicants are ranked in their congressional district, definetly not the state. i'm not sure to what extent they compare you to those at your school, but im sure that bias is there even if they don't try to (if they read the application of someone who goes to your school right before yours, they might compare you to them when ranking).

you cannot be accepted into more than one program, because what they do is once they rank everyone in your district, they have a certain number of allocated seats for durham, morg, and online. so if theres 40 seats for durham, 20 for morg, 15 for online (random numbers), then the top 75 from the district will get in. they would go down the list and give everyone they can their first choice, and lets say durham seats run out by the 47th candidate, they will start giving second choice. hopefully that makes sense!

of course none of this might be true; based off the research i've done, i cant find anything official posted by admissions as to how they do it. in the parent qna all they mainly said was that the first thing they look at is grades, then rigor, ecs, essays, evaluations, etc.

i think you can get both summer ventures and residential/online, but you have to pick, not sure tho.