关于超过几何分布

clc
syms r
format long
s=0;
n=10;
w=[-1,-1,-1,-1,-1,1,17,179,1299,2599,24999];
% for k=0: 10
%     s=s+ nchoosek(20,k)*nchoosek(60,n-k)/nchoosek(80,n);
% end
% s
for k=0: 10
     nchoosek(20,k)*nchoosek(60,n-k)/nchoosek(80,n)
end

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