Probability of failure.............. (function, nerd, comparison)
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if probability of failure is X
what is the probability of N failures in Q attempts?
Well, the probability of N failures in Q attempts is N/Q.
X is a fixed number, if I am reading your question properly, so it is a standard used to compare the result of N/Q. If the result is within 0.05 of X then it is a plausible outcome.
But, if you are asking for a comparison of N failures in relation to X, then it would be:
n!/(n-1)!x!*p^x*q^n-x
n=Q
x=Q-N
p=1-X
q=X
Last edited by K-Luv; 07-30-2009 at 11:34 AM..
Reason: eggs!
This appears to be an nCr function, n!/(n-r)!r!, which is used for counting the number of possible combinations of r and would yield a result of the total number of ways (combinations) in which a failure can happen.
Maybe that is what the OP is looking for? But I dunno, the guy hasn't posted a response yet. All I know is that there is a factorial in there somewhere.
Yes, a failure cannot affect the outcome of another failure if another failure where to occur. It would be nice if the OP could repost with the data....yes, I am a math nerd.
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