help me in performing summation

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nkumar
nkumar 2013-1-19
I want to perform equation 7 and 8
http://imgur.com/HYau77G
please help me,
N is 256 and mew is 0.5
i tried symbolic summation but could not get answer

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Roger Stafford
Roger Stafford 2013-1-19
It is useless to attempt a symbolic summation of these quantities. Each of the x quantities would have to appear. Just use matlab numeric formulas:
N = length(x);
mu = sum(x)/N;
sigmasquared = sum((x-mu).^2)/(N-1);

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