Question 1166589
<pre>
The numbers 000, 001, 002, ..., 999 is 1000 possibilities. 
My probability of choosing the right sequence from those is 1/1000 or 0.001

Winning or loss   probability            Expectation
   $300.39            0.001        $300.39(0.001)=$0.30039 <--expected win
  -$  0.86            0.999       -$  0.86(0.999)=$0.85914 <--expected loss
----------------------------------------------------------  
                                Total expectation=-$0.55875

You can expect to average losing about 56 cents per play if
you play many times.   When you lose 999 times and win 1 time
it'll only reimburse you for $301.25 of the $860 you've paid 
to play.

Edwin</pre>