http://en.wikipedia.org/wiki/Varianc...andom_variable
In particular you may take a look at the Bernoulli distribution which take values :
http://en.wikipedia.org/wiki/Bernoulli_distribution
I would like to know the variance of two deterministic distributions when putting them together.
Of course the variance of the two seperate deterministic distributions is zero, right?
I have a machine that processes products and with chance x it processes product A and with chance 1-x it processes product B, so the chances are known.
What will be the variance of the processing time of the machine?
Thank you in advance!
http://en.wikipedia.org/wiki/Varianc...andom_variable
In particular you may take a look at the Bernoulli distribution which take values :
http://en.wikipedia.org/wiki/Bernoulli_distribution
Thank you I understand it.
My p will be then r/(r+r/t), I can fill that in in the formula for the variance p(1-p). But, in the bernoulli distribution, the values are 0 or 1 and in my assignment this is between different numbers, and I think that these numbers influence the variance. Is that true? So, do I have to convert the variance formula with my other values? And so, how?
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