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Topic: expectated value
Replies: 5   Last Post: Jan 15, 2013 9:44 PM

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Nasser Abbasi

Posts: 5,647
Registered: 2/7/05
Re: expectated value
Posted: Jan 15, 2013 9:44 PM
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On 01/15/2013 12:47 PM, maryam wrote:

> -----------------------------
> Dear Torsten
> thanks your reply
> In the part of my thesis I obtain a vector of random variables that is
> I=1xn - matrix.
> then I must to calculate "contrast (I)" , the definition of contrast is
>contrast(x)=E(x^2)/(E(x))^2
> and E(.) denoted the expectation operator.
> how could I calculate contrast (I)?
> thank you very much
>


From what probability distribution are those numbers drawn from?

--Nasser




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