command rand and functions

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

[James Tursa]

What code have you written or outlined so far?

[Image Analyst]

Isn't this a duplicate of http://www.mathworks.com/matlabcentral/answers/75245-for-those-who-love-a-challenge-no-2. If so, why?

[Randy Souza]

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.

Answer 1

[Youssef Khmou]

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')

[José-Luis]

Please do not post complete answers to homework questions.