请帮忙用matlab My telephone rings 12 timeseach week,the calls be

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请帮忙用matlab
My telephone rings 12 times
each week,the calls being randomly distributed among the 7 days.What is the
probability that I get at least one call each day?

昨天不是给你代码了么?改改就行了
res=[];
for i = 1:50000
u=fix(7*rand(1,12))+1;
is_included = 1 ;
for j = 1:7
if( sum(u==j)==0 ) %j对应的数字没有包含
is_included = 0 ;
break;
end
end
res = [res is_included];
end
sum(res)/length(res)

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