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Ok I know how to calculate the Standard Deviation of say 10 given values....... But can some on etell mehow i can calculate the reverse...
Say i Have a standard devaition of 0.316 now I would like to generate say 10 values that give this deviation......
Thanx for any help...
I doubt that it is possible; the same standard deviation could be obtained from an infinity of sets of ten numbers...you will never get the exact 10 that this deviation was used for. There might be a generalization about these infinite number of sets however... you need some more info vasanth.
I might be wrong, but right know I don't see a way - but I have statistics today and I just might ask my prof! :)
well its fine as long as I get any 10 numbers within a given range that gives the same deviation...
I dont care what those numbers are as long as they satisfy the deviation..
>>I dont care what those numbers are as long as they satisfy the deviation..<<
ahh, well that changes things a bit...when I get home today I'll try to work something out.
Well, standard deviation is the square root of the variance, so I suppose you could plug in variables and try to solve for it? First off you'd have to find a mean.
(x-mean)'+(y-mean)'+(z-mean)'
--------------------------------------- = variance (' is "squared")
3
Trying to get 10 or so numbers crunced out of that is beyond me.
You do know that falsifying data is frowned upon, don't you? :D
lol.. actually I need this data to simulate phone calls...(acually call holding time).. and the input given by the user is just the deviation and I need to do the rest...Quote:
Originally Posted by exluddite
Hope some one here can come up with a solution on how to calculate it..
thanx in advance..