Originally Posted by

**Bradley** If you are interested in probability, you can find numerous sources easily. If you are not familiar with probability at all, start with some discrete math texts, are even a dedicated text (probability only), or go all the way and get an introductory text for statistics.

Take your choice: with or without calculus.

If you want to apply probability theory to communications theory, you can peruse 40 years of articles, but that probably is a complete waste of time.

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What I don't understand is how one is supposed to know the probability that any user is going to transmit without knowing the typical traffic or user-needs constraints.

Maybe I just don't understand the technology.

What is the probabiltiy of winning the lottery?

That can be easily solved numerically.

What is the probability that some person out of a set of persons is going to play the lottery anyway at some particular time?

Beats me, unless I know the person's habits.

I see someone gave you an answer but not to your question.

I don't understand their answer myself.