Every time I use a piece of scrap paper, I crumple it up and try to shoot it inside the recycling bin across the room. I'm pretty good at it: If I shoot pieces of paper at the recycling bin, at least one of them will make it inside the recycling bin with probability . If I shoot pieces of paper at the recycling bin, what's the probability at least two of them make it inside the recycling bin?
(Assume that the probability I make any given shot is uniform across every shot. Leave your answer in exact form; there should be no decimals in your answer.)
Melody or CPhill, please help!