<< I say this because of my own experience. I got a high SAT score, had a 3.9 GPA, almost all the AP clases, but I never did community service nor played any sport. I did not get accepted into either of the two ivy league universities where I wanted to go. Instead, a friend of mine who had a lower SAT score and GPA than I did, got accepted into one of those universities. That kid would not stop doing extracurricular activities in high school; student government, football, track, chorus, worked a part-time at McDonalds.
So guys, if you are planning to get into a top university, don't do the same stupid mistake that I did.
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Personally, I don't think what you did was a mistake at all. Most colleges will identify students who only took on EC's to impress others. They can usually tell how dedicated you are. In your friends case, they either missed one, or saw something in him that they wanted-perhaps he interviewed well and made it clear that he was truly committed to those EC's, though of course I am completely speculating.
I'm sorry that the school of your choice didnt recognize your academic talent-however, I would not suggest taking on EC's just to impress...
personally, I was NOT the valadictorian, NOT on a sports team, NOT on yearbook or newspaper...the only thing I WAS was the captain of my school's mock trial team...nevertheless, i got into the ivy of my choice. (and, to answer the original question, my SAT score was a 1410 and my gpa (non-adjusted) was about a 3.5, numbers that place me below the class average for future graduating class)...
my advice-do what you like, be honest, and write a damn good essay-that's all I could think of that I had going for me.