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function v = Puass () a=0.04; y=rand(); v =-log(1-y)/a;endfunctions= Puass ()M=100000;data=zeros(M);for i=1:1:M data(i)= Puass ();end histplot (50,data)Mv=0;for i=1:1:M Mv=Mv+data(i);endMv2=0;for i=1:1:M Mv2=Mv2+(data(i))^2;endDv=0;Dv=Mv2-(Mv*Mv);endMv=Mv/M

M = 100000:

M = 1000:


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a=4; sigma = 0.63;function v=Rand_n(a, sigma) N=24 ro=0 for i=1:1:N ro=ro+rand() end Mro=N*0.5; Dro=N*1/12; tau=(ro-Mro)/sqrt(Dro); v=tau*sigma+a;endfunctionM=100000;data=zeros(M);for i=1:1:M data(i)= Rand_n(2,1.5);endhistplot(50,data)Mv=0;for i=1:1:M Mv=Mv+data(i);endMv=Mv/M;Mv2=0;for i=1:1:M Mv2=Mv2+(data(i))^2;endDv=0;Dv=Mv2/M-(Mv*Mv);

 

M = 100000:

 

 

M = 1000:

 



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