You've posted quite a few problems in a short amount of time (which is fine) but all of them seem quite lacking in a few areas. Please read this to get a good idea of what makes a good post that will help us help you.
This uhm... seems completely unrelated to your original post. It also doesn't really give much information. I think your question is about the binomial distribution but it doesn't relate to the original post. Did you read the link I posted? No offense but unless you read that link and follow some of the suggestions I'm not going to spend time attempting to help you.