/sci/ - Science & Math

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can anyone explain this to a pleb like me? what does it have to do with pascal's triangle?

http://en.wikipedia.org/wiki/Talk%3ABean_machine

I feel like our technology has stopped advancing rapidly after the invention of the internet and cellphones, but that's probably because those are major things I use every day. What are some big inventions in the last 1-3 decades (preferably more recent) that are worth mentioning? Or perhaps to make it more personal, what do you believe to be the most important invention to date in the last 3 decades (other than the internet\cellphone)

/sci/, give me some statistics help please: I have a set of values and I want to choose some of them at random, without replacement and add them. Is there a distribution for this? It's safe to assume they're normally distributed.

Thanks in advance.

Hey /sci brothers, please help me once again; tell me if there is a discrete analog of the Gaussian distribution.

That was my question. But after some thought, I realized that I don't want you to answer; I'll pick up my lazy us and find a solution to my problem alone.

Pride; dignity; winrar.