Recent content by Mark_809

Thanks guys! I really appreciate it. I'm hoping this site is also good for possibly stupid questions I come up with based on my hard science fiction reading :P Thanks again! -Mark

Last question (hopefully) - does our formula [(2^9 - 1)*(2^11 - 1) = X] also cover the possibility of two or more drugs combined with two or more activities?

Just out of curiosity... the online combinatorics calculators used this formula to calculate how many different ways you could get any 2 out of 9 options (for instance): (n+m-1)!/(n-1)!*m! What does the "!" mean? That formula from the calculator seems completely different from the one we just...

Exactly. So then it would work out like this... (2^9 - 1)*(2^11 - 1) = X (511)*(2047) = 1,046,017 Is that right?

Ah ok so would it be correct to say that if the rule is I have to have at least at least 1 drug(m) and at least 1 activities(n) the equation would be (2^9 - 1)*(2^11 - 1) = X?

Does that also include the possibility of 0 drugs and 0 activities? (I was trying to sort of test 2^m by substituting 3 for m so it's drugs, A, B, or C - but I only came up with seven combinations: A, B, C, AB, AC, BC, or ABC - does this equation include the possibility of no drugs at all?)

I would say I'm trying to determine how many possible combinations there are for anyone defendant. So Defendant A is alleged to have done one or more of eleven activities with one or more of nine different substances. What I would like to find is X in this hypothetical sentence: "By combining...

Homework Statement To make sure I don't get booted right off the bat, I should emphasize that this is not a homework assignment. I'm a lawyer working on a brief, and I'm trying to respond to an allegation that has dragged combinatorics into the case. In a complaint filed in court, you are...

Thanks! :)

Hello all, I'm an attorney (and SF fan). At the moment I'm just trying to get an answer to what to the mathematicians here might be a simple question but for me is over my head. However, I am glad I found this site in general as I've been trying to follow the hard science/math in some of my...