Posted by fweng on Sunday, May 26, 2013 at 12:06pm.
Assume die is fair.
Rolling twice gives 36 outcomes, of which the second roll is strictly less than the first (successes) can be enumerated as follows:
21,31,32,41,42,43,51,52,53,54,61,62,63,64,65
Count how many successes there are, and divide by the size of the sample space (36).
thanks sir...
You're welcome!
It would be even better if you would not use various aliases.