Recent content by TheRobsterUK

Thanks, I've reposted in the General Math forum as advised. https://www.physicsforums.com/showthread.php?p=1313697#post1313697 With regards to assumptions, I can't really make any...this is the only data that's available so I don't have much choice other than to work with a small sample...

I'm currently working on a costing model for water storage tanks. The type of tanks I'm looking at have a certain life expectancy but due to a limited number of installations there isn't much empirical (observed) data about how long they can actually be expected to last before needing...

Makes sense, thanks for the help. :) -Rob

It's in relation to work, not school - I'm 32 years old! :D

Thanks for the quick response but I don't think I made myself clear on the second query. The state of the variables ABCD can be either 1 or 0 but the order they are in for the second case will always be ABCD. I think in your response you assume that the order ABCD can change as well as the state...

Hi, I have some queries that I'm hoping you can help me with. Actually these are probably fairly straight forward for this forum but it's been a long time since I've done any formal math so some help would be appreciated. First query: suppose I have 4 objects: A, B, C and D. I want to know...

Hi, I have a question about factorials that I'm hoping someone can help me with. I know that the factorial n! means the product of the integers from 1 to n, for example if I have 4! then this is equal to 4 x 3 x 2 x 1 = 24, but I have an equation which contains the term: k(n-1)! I am...