command rand and functions

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Charlene
Charlene 2013-5-9
Hi guys I have this question as an assignment question can someone help out please thanks :)
Suppose you are at a casino playing roulette and that you are betting on black to turn up. You start by betting $1. If you win you bet another $1 in the next game. If you lose double your previous bet. You will stop playing when you have either won at least 10 or lost more than $100. By use of script file simulate this system.Then play the game 5000 times and record your performance.
Hint: use the command rand
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Randy Souza
Randy Souza 2013-5-24
I have restored the original text of this question.
@Charlene: this question has an accepted answer, so it may be valuable to someone else in the future. If you have a good reason why it should be removed from MATLAB Answers, please flag the question, explain why it should be deleted, and an administrator or high-reputation contributor will consider deleting the question. Please do not simply edit your question away.

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Youssef Khmou
Youssef Khmou 2013-5-10
编辑：Youssef Khmou 2013-5-10
hi, try and verify this version:
N=5000;
S=zeros(1,N);
S(1)=1; % 1$
win=0;
lost=0;
threshold=0.5;
for n=1:N-1
r=rand();
if r>=threshold
win=win+1;
S(n+1)=1+S(n);
elseif r<threshold
lost=lost+1;
S(n+1)=S(n)-2;
end
if win>10
disp(' Congra! you won the game');
break;
end
if lost>50
disp(' You lost');
break;
end
end
figure, plot(S(1:n)), title(' Game progress')
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José-Luis
José-Luis 2013-5-24
Please do not post complete answers to homework questions.

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