A person throws two fair dice. He wins Rs. 15 for throwing a doublet
( same numbers on the two dice), wins Rs. 12 when the throw results
in the sum of 9 , and loses Rs. 6 for any other outcome on the throw.
Then the expected gain / loss (in Rs.) of the person is :
When 2 dice are thrown , Sample space would be
Now, the expected gain or loss = both + Sum (9) - other
So, there is loss of