Hey
I applied to SCS in Carnegie Mellon. Engineering was my second choice. I wanted to if they rejected you for the primary major , can you can accepted for the alternate major?
btw i got 2160 in SAT (800 M,650R,710W) and 32 ACT(35E,35M,29R,30S)
Essays - 7-8
LOR-9
Yes, since you applied to two different schools within CMU, you can either be accepted or rejected by either one.