Matrix help..

G

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I've been trying to do this problem for some time now, and am very confused.

Here it is:

You are at a charity gambling event and are playing a simple game. You spin a wheel with the numbers 1 to 10 on it (each number is equally likely to come up.) If you get a 1 to 4, you win $1, 5 to 10 you lose $1. Suppose you have $2 to play with. You decide to stop playing if you run out of money or if you have $4.

1. Set up a transition matrix for this problem. (hint: the states represent how much money you have; there should be five states.)

2. What is the probability that you will have $4 after the first two rounds? Explain, without using matrices, why this answer makes sense.

3. Find the probability that you have lost all your money within 8 rounds.

4. What will happen in the "Long Run?" Explain your answer. (Matrix A times Matrix B to the 100th power.)

5. What happens to the probablity of ending up with $4 if you start with $1 or $3? Explain your answer.

I'm confused. I don't know how to set up the matrix, so any help would be appreciated. Thanks in advance.
 
\(\displaystyle \L \begin{array}{c}
\ & 0 & 1 & 2 & 3 & 4 \\
\hline
0\| & 1 & 0 & 0 & 0 & 0 \\
1\| & .6 & 0 & .4 &0 & 0 \\
2\| & 0 & .6 & 0 & .4 & 0 \\
3\| & 0 & 0 & .6 & 0 & .4 \\
4\| & 0 & 0 & 0 & 0 & 1 \\
\end{array}\)
 
can someone help me understand where the .6 and .4 come into play on the matrix?
 
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